CIRCUIT-HACKS

A1Shortcut map

A2Master FX on the Mixer button

Master FX is a performance view with effects on the master output, a song pointer and a row of assignable effects (sections C4, C5, C6, C7 and D1).

1. 1. Press Mixer.
2. 2. Press Mixer again: Master FX opens.
3. 3. Any other view button goes back to the normal view.

A3Keys of the FX view

• The bottom row (pads 25-32) is the same as in Master FX: assignable slots, the mechanical gesture (31) and record (32).
• If Setup routes the reverb / delay return to strip 3 / 4, the sends of those strips stop at half range and move at half speed.

A4Clear + knob = default value

• On the drums and the MIDI engine it resets both layers of the knob: the plain one and the Shift one.
• Master FX: while Clear is held, the knobs of the selected effect that are at their default show lavender (no red: there is no automation; in RC0.9, blue / red). It works for the effects of pads 1-6, the Glitch (normal speed, no repeat, no delay or chaos) and the sample (no transposition, one-shot, start 0, end at maximum).
• RC0.3: the drum blue is the original’s (before, a dim red-orange showed).

A5Switch off latched effects (Master FX pad 8)

• Shift + effect pad latches the effect. Touching it again (without Shift) releases it.
• Pad 8 (white) releases every latched effect, also those of the bottom row, switches the song pointer off and stops the sample.

A6Synth source view

1. 1. With the Synth 1 or Synth 2 view on screen, press its button again.
2. 2. Pick the source:

1. 3. Any button closes the view.

• The patch needs some noise level (CC 56) for the source to be heard.
• If Setup routes the reverb / delay return to strip 3 / 4, that is the signal the synth receives.
• The source is saved with the project.

A7Chromatic and scale view of the drums

• Shift + Preset with a drum selected: the pads play the sample transposed by the scale and root of the Scales view (three rows).
• K1 = pitch offset in semitones; Shift + K1 = fine tuning in cents.
• While recording, each pitch is recorded on its own step only.
• Note view of the drums: pads 25-28 repeat the tiles of drums 4 … 1.
• since RC2: in a drum's Preset view, Preset again turns the chromatic view on / off (as Shift + Preset).

A8Pack management on the device

Not in the safer builds (RC0.3S, RC0.2S, RC0.1S, RC0S). New: RC0.1, Duplicate lights and works in the drum and synth Preset views, copying samples and patches between packs and deleting packs by presses; RC0.2, the Clear LED during a delete; RC0.3, copies go into the replaced sample’s place when they fit, the import memory never overwrites a sample that plays and the delete is easier to follow (Clear steady white, the packs get their colours back); RC0.4, copies to empty slots and Clear steady white as soon as the packs view opens.

Saving the captures into the pack

When the project is saved, every drum sample replaced by a capture (A9) is written into the pack as PCM/NN_PCM.wav, if it fits in the sample memory.

Swapping two samples

Drum Preset view: hold Duplicate (it lights in this view), touch pad A (it blinks blue), then pad B. Both files and the sample table are swapped: you hear it at once.

Copying samples between packs

1. 1. In the sample’s pack: Drum Preset view, Duplicate + pad A. It stays copied (blinks blue while Duplicate is held), even after you release Duplicate.
2. 2. Load the other pack. While Duplicate is held, the pad with A’s number blinks yellow.
3. 3. Duplicate + pad B: sample A is copied over B in this pack and sounds at once. A’s pack is left untouched.
4. 4. Duplicate + A again (in its pack) cancels.
5. 5. Inside one pack, Duplicate + A + B still swaps the two samples.
6. 6. Where the copy goes (from RC0.3): if the sample fits in B’s place it goes there and uses no memory. Otherwise it goes into the free import memory (≈ 44 s), which starts again once no sample uses it (for instance after loading the pack again). If there is no room, nothing changes: a copy never overwrites a sample that plays.
7. 7. Empty B (from RC0.4): a pad without a sample can be the target; its file is created in the pack.

Copying synth patches between packs

1. 1. Synth 1 or 2 Preset view, in the patch’s pack: Duplicate + pad A (Duplicate lights in this view). It stays copied (blue while Duplicate is held).
2. 2. Load the other pack: while Duplicate is held, A’s pad (on its page) blinks yellow.
3. 3. Duplicate + pad B: patch A is copied over B in this pack and B is chosen again, so it sounds at once. A’s pack is left untouched. Inside one pack the two patches are swapped; Duplicate + A again cancels.
4. 4. The 128 patches of a pack are shared by both synths. Not in the source or step-drummer views (from RC0.3, not even with Duplicate held before they open).
5. 5. Empty slot (from RC0.4): B can be an unlit pad. If it lies past the last patch of its bank, the empty slots in between stay empty, as when the original saves a patch.

Deleting a pack

1. 1. Packs view (Shift + Projects): tap Clear (no Shift). For ~5 s the packs that can be deleted blink (never the loaded one).
2. 2. Touch the pack: only that one blinks; it is not loaded.
3. 3. Tap Clear again within 5 s: the pack is deleted. The slot can be reused after a restart.
4. 4. This is how it works from RC0.1; in RC0 (Clear held + pack) it did not work on the device. Clear shows steady white as soon as the packs view opens (from RC0.4; dim before) and while the delete waits for confirmation; when it ends or is cancelled the packs get their colours back (from RC0.3; in RC0.2 Clear blinked and the packs could stay dark; in RC0.1 Clear did not light).

A9Replace a drum with the capture

• Clear + pad: asks (the pad blinks). Clear + the same pad again: confirmed; the sample plays the Master FX capture (C5).
• Any pad without Clear cancels the question; Clear + another pad moves it to that pad.
• It is volatile until you save the project: then it is written into the pack (A8). In the safer builds it lasts until the pack is loaded again.
• Up to RC0.2 it was Shift + pad; from RC0.3 Shift + pad is the original’s silent selection again (picking a sample without playing it).

A10CC editor of the MIDI macros

1. 1. MIDI 1 / 2 Preset view, pad 25 (it lights).
2. 2. Move a knob: it is selected and its CC number is drawn with the 32 pads.
3. 3. Octave ▼ / ▲: next / previous field.
4. 4. Turn the knob to change the value.
5. 5. Save: pad 26 (Save), or step with Octave ▼ to the save step (pad 26 and the Save button blink) and press Octave ▼ again.
6. 6. Discard: any view button, pad 25 or a template pad.

A11Mixer: Shift + knob = level to 100 / 0

• On the levels page of the Mixer (the normal one, Octave ▲). On the pan page (Octave ▼), Shift + knob moves the pan as always (since RC2: it turns the cue mode on / off, see the guide by views).
• The jump works like a turn of the knob: it goes out over MIDI and, while recording, it is written into the automation.
• On the original, Shift + knob did the same as the plain knob: no function is lost. Clear + knob (delete the automation) and Master FX (Mixer twice) do not change.
• From RC0.3 (also in RC0.3S).

A12Cue mode, mutes on the bar and quantize (since RC2)

• Cue mode: on the pan page (Octave ▼), Shift + knob to the right turns it on and to the left off (Octave ▼ pink). With the mode, the pan knobs are each track's send to the cue: the left output carries the mix in mono and the right one only the tracks in cue. Saved in the device; the pans come back when it is turned off.
• Mutes on the bar: Shift + a track pad (row 1 of the Mixer) = that track mutes or unmutes when the next bar starts; the pad blinks while it waits, again cancels it; stopped, at once.
• Quantize: Shift + Play moves the notes and hits recorded off the grid to the nearest step (micro steps 1-2 → their step, 3-5 → the next one), in the playing pattern of the selected track. It replaces the original's Shift + Play.
• Details in the guide by views (Mixer and buttons of every view).

A13LFO synced to the tempo (Beta 3.22 only)

• Where: K7 of the VCA-VCF page of the MIDI 1 / 2 engine, Shift + K4 of the modulation matrix (in each shape, the left half of its stretch), Shift + K7 of the drums, K1 of the Auto-Filter and of the Phaser (Master FX).
• At the centre the LED is dim; brighter towards both sides.
• To the left, from the centre outwards: 1/16T, 1/16, 1/8T, 1/8, 1/4T, 1/4, 1/2T, 1/2, 1 bar T, 1 bar, 2T, 2, 4T, 4, 8T and 8 bars (4 clicks each). The cycle is put back in place on every sequencer tick to start on the bar's first beat; stopped, it keeps the tempo.
• To the right, the free LFO as always (faster further right).
• What was saved before with another rate may sound different.

A14Split keyboard Synth 1 + Synth 2

• Each half is its synth’s keyboard: its scale, octave and velocity (the same keys as the lower half of its Note view), in its colours.
• The knobs and Octave belong to the synth you pressed first.
• Leaving: any track or view button (Note, Preset, Mixer, FX, a single Synth…). Held notes are released. Play, Record, Octave and Shift do not close it.
• Synth 1 or Synth 2 alone work as always (twice = the source view, A6).
• Since RC2.02: any pair of note tracks (Synth 1, Synth 2, MIDI 1, MIDI 2): hold one button and press another; the top rows play the one you held first (in RC2, Synth 1 always on top). The drum buttons do not open it.
• Beta 3.22 only — another track's knobs: with the split keyboard open, hold a track button (Synth 1 / 2, MIDI 1 / 2, Drum 1-4): while you hold it, the 8 knobs (and their lights) are that track's; let go and they go back to the first one. A short tap (no knob turned) closes it as always.

A15Synth patches by voice mode

• Mono = dark blue; mono with glide (Mono AG) = lavender; poly = the track colour, as on the original. The chosen patch is drawn lighter.
• The modes are read from the card when the pack, the page or the patch changes, and every 4 s.
• In Advanced Setup pads 22 / 23 no longer light up (they never did anything there).

A16Patches of the own synth (MIDI 1 / 2)

• A patch holds the whole track engine: the engine chosen (line, oscillator, VA-drum, granular, FX sequencer), two oscillators, the chain order, every value of every page and the step-drummer setting (enabled and destination). The steps of the step-drummer and of the FX sequencer belong to the pattern: they travel with the project.
• The 64 slots belong to the pack and are shared by MIDI 1 and MIDI 2: a patch saved from one track can be loaded into the other.
• Load: touch a slot. While you hold the pad, the root of the scale sounds on that track with the patch just loaded.
• Save: Clear + pad = the slot blinks white (a question); Clear + the same pad again within ~5 s = saved, replacing what was there. Clear + another pad moves the question.
• Exchange: hold Duplicate, touch slot A (it blinks) and then slot B: they change places. Onto an empty slot, the patch moves. No gesture empties a slot: overwrite it or move it.
• Initial values: Clear + the track button (MIDI 1 or MIDI 2, with a view of that track on screen and the CC editor closed) puts every value of the engine back to its initial value; the chosen engine stays.
• Colours: dim peach = a slot with a patch; bright peach = the last one loaded or saved; violet = empty (touching it does nothing).
• On the PC: tools/patchtool.py (on the PC, with the card in a reader) treats each patch as a .ctm file: list shows the 64 slots with their index, name and engine; copy uploads a file into a slot, downloads it or copies it between slots and packs; show reads the engine and every parameter and set changes them (set bass.ctm filt=90 engine=granular); new makes a patch with the initial values; name names it and clear empties a slot. The device has no screen: the name is for the tool; Duplicate + A + B moves it with the patch, saving over the slot removes it.
• BETA2 / BETA3 had other gestures: Duplicate + pad saved, Clear + pad emptied and the empty slots were dark.
• Octave ▼ = next page, Octave ▲ = previous page (lit when there is a page that way). Coming back from Master FX or a synth’s Preset view starts at page 1.
• Where they are kept: in the free space behind each of the pack’s first 64 synth patches (Patches/). If that synth patch does not exist yet, it is created from the Initial Patch (with the missing ones before it in the bank).
• They are not shown while the CC editor or the step-drummer is open (those use the pads and Octave).
• In the safer build (RC2S) it does not write to the SD card: the Save LED turns red.

A17Saving the synth’s patch into the pack

• The original device cannot save patches (only Components can). What is saved is the patch in use with every change: the knobs, what came in over MIDI and the macro destinations (A16).
• Clear + pad = a question, nothing is written. Clear + the same pad within ~5 s = saved: it replaces the patch that was there and the slot becomes the chosen one. Clear + another pad moves the question; a touch without Clear, or the time, drops it.
• Any of the 4 pages (128 slots). A slot past the end of the bank too: the slots in between stay empty.
• The saved patch keeps the name of the one that was loaded. Synth patches are managed with Components; tools/patchtool.py slist / sname lists and renames them on the card.
• The own-synth patch that shares the slot (A14) is not touched.
• Duplicate + A + B still copies / exchanges patches (A8).
• In the safer build (RC2S) it does not write to the SD card: the Save LED turns red.

A18Macro knob destinations

Each of the 8 macro knobs of a patch has 4 slots, and each slot a destination, a stretch of the knob’s travel (start and end) and a depth. On the original they can only be edited with Components.

1. 1. Source view: with Synth 1 / 2 on screen, press its button again. Pad 32 (teal) = editor on; the knobs no longer move the macros.
2. 2. Turn a knob = you pick its macro (its LED white). The first turn changes nothing.
3. 3. The knob changes the current field; Octave ▼ = next field, Octave ▲ = previous:

1. 4. Any pad drops the macro (the pads of the source view come back); pad 32 turns the editor off; any view button closes it.

• Destination: the knob first walks the 31 parameters that have a CC, by CC number (5, 20, 21 … 91, 93), then the 39 that only have an NRPN (envelopes 2 and 3, LFOs, chorus, depths of the modulation matrix). The numbers are those of Novation’s Programmer’s Reference Guide: e.g. 74 = filter cutoff, 71 = resonance.
• The changes are heard at once and live in the project’s patch. To keep them in the pack, save the patch (A15).

A19Copying projects to another slot or another pack

• Duplicate + pad A (a slot with a project) = the source. Duplicate + A again forgets it.
• Duplicate + pad B = the copy. An empty B is written at once and turns yellow; a B that holds a project blinks white and Duplicate + B must be repeated within ~5 s to replace it. The slot of the loaded project is never written.
• To another pack: pick the source, load the other pack, open Projects and Duplicate + pad B. The source serves several copies; it is lost at power-off or when Master FX is opened.
• What is copied is the project as saved on the card (save first if you changed it). While it copies (a few moments) the device does not respond.
• A project stores patch and sample numbers, not the sounds: in another pack it plays with that pack’s patches and samples.
• In the safer build (RC2S) it does not write to the SD card: the Save LED turns red.

A20Own-synth patches to another pack

• Duplicate + slot A with the source pack loaded: the patch is remembered.
• Load the other pack and go back to the Preset view of MIDI 1 / 2: Duplicate lights yellow (a patch is waiting).
• Duplicate + slot B writes it there. It serves several slots.
• Inside one pack, Duplicate + A + B still exchanges the two patches.
• Nothing is copied when A is empty or when the destination pack lacks that patch bank.
• In the safer build (RC2S) it does not write to the SD card: the Save LED turns red.

B1Drum knobs as printed on the panel

• The LED brightness shows the value; Clear + knob resets both layers.
• Everything is saved with the project and has NRPN (E4).

B2Reverb and delay parameters

• In the FX view, with Octave ▲ (delay) or Octave ▼ (reverb), Shift + knob sets the global effect.
• Reverb: K1 type, K2 decay, K3 damping. Delay: K1 time, K2 sync, K3 feedback, K4 width, K5 ratio, K6 slew.
• The LED shows the value with its brightness.

B3Side-chain and master compressor on the knobs

• K1-K4 act on the track of the last side-chain preset you touched (Synth 1 until you touch one); their LEDs take that track’s colour. A preset pad still writes its four values.
• K7 = attack and K8 = release of the master compressor (the one switched on in Advanced Setup), white with their value. Threshold and ratio are fixed.
• The compressor’s attack and release are saved with the project (see “Master FX since RC2”).
• since RC2: on the drum pages (Octave ▼), K1-K4 = attack, hold, decay and depth of the side-chain of the drum of the last preset touched, in the drum's colour; saved with the project, and a preset brings them back to its own.

B4Recording the internal MIDI routes

• When MIDI 1 / 2 shares a channel with Synth 1 / 2, what you play or turn on the MIDI track sounds on the synth without a cable. By default that is not recorded into the synth’s pattern, only into the MIDI track’s.
• With Record yellow (Setup view, not Advanced Setup) it is recorded into the synth too, as if it came from external MIDI: useful to record scale or octave changes made from the MIDI track in real time.
• It switches off at power-off. With the toggle on, the auditions of the step-drummer of Synth 1 / 2 are recorded as well.
• Beta 3.22 only — chord bank: with Record yellow, nothing is recorded into a note track muted in the Mixer (its track pad off). The steps you play on it sound and go out on its channel, and are recorded only into the synth sharing the channel: the muted track stays a chord bank that nothing writes into.

B5MIDI for everything new

• MIDI track engine: stock CCs where the function matches and NRPN 4:code for the rest, on the track channel.
• Drums: NRPN MSB 5-8 = Drum 1-4, LSB 1-12, on the drum channel.
• Master FX: NRPN MSB 9, LSB = 4 × set + knob, channel 16.
• They follow the CC Tx / Rx filters of Setup. Full tables in E4.

B6Automation of the MIDI engine

• Engine page 4 (pad 4 of the page row): TUNE, Release, Env → level, Env → filter, Filter, Resonance, LFO speed, Effect amount.
• While recording, moving those knobs records the movement; on playback the pattern moves them.
• With the step-drummer on, the TUNE lane is used by the pitch row.
• Beta 3.22 only — letting go of the automation: Velocity view, Shift + a step pad (Synth 1 / 2 and MIDI 1 / 2) = no lane plays at that step and what the automation had moved goes back to its knob's position; saved with the pattern.
• Beta 3.22 only — destinations: Shift + a knob of page 4 = that lane's destination (the 33 parameters, the matrix's order and colours, 4 clicks each); Clear held before Shift = the factory one; while you pick, pads 9-24 show where the destination lives (as the matrix's); saved with the own-synth patches.
• Beta 3.22 only — snapshot into a step: Record held + a step pad (track view) = the parameters not at their initial value, written into that step's lanes; those without a lane take one whose parameter is at its initial value (cleared first); Record stays as it was.

B7Setup and device MIDI

• Internal loopback: if a MIDI track shares its channel with a synth or the drums, what it sends reaches them internally.
• Pads 22 / 23 light cream (reverb) and peach (delay), the colours of the FX view; dim = off.

Metronome and count-in (since RC2)

Shift + Clear, in any view, walks four states (the original only turned the metronome on and off):

• With the count-in, Record armed and Play from stopped: one bar of count-in plays (4 clicks, the stock metronome's sound, at the project's tempo) with Record blinking red; then recording starts. Play during the count cancels it.
• Without Record armed, Play starts at once, as always.
• The metronome is the stock setting; the count-in is saved with the project.
• Click volume: the stock's, pressing Tempo/Swing and turning K5.

MIDI Thru: Merge and Filter (since RC2)

The original only lets the Thru jack be Thru (a hardware copy of DIN In, Duplicate dim red) or Out 2 (a second MIDI output, green). Duplicate in the Advanced Setup view now steps through four modes:

• DIN In SysEx is not copied in Merge / Filter. In Merge, if the device follows the DIN In clock and has Clock Tx on, the Thru jack carries two clocks: switch Clock Tx off.
• It is saved in the settings. With the original firmware, Merge / Filter go back to Out 2.

Program Change channels (since RC2)

In the Setup view (not Advanced Setup):

1. 1. Pad 29 (PGM Rx): pads 1-16 show the listen channel (white = the chosen one, dim white = the rest). This first touch does not change PGM Rx.
2. 2. Touch a channel pad to pick it.
3. 3. Pad 29 again = PGM Rx on / off, as always.
4. 4. Pad 30 (PGM Tx): the same with the output channel.
5. 5. A track button or another pad: pads 1-16 show the tracks’ channels again.

• Both are 16 by default, as on the original. They are saved in the settings; with the original firmware they go back to 16.
• Receive (PGM Rx): a Program Change on the listen channel picks the project. If the listen channel is not 16, channel 16 no longer picks projects. If it is the channel of Synth 1, Synth 2 or the drums, it goes to that track.
• Forward: with PGM Tx, what arrives on the listen channel goes out again on the output channel.
• Send (PGM Tx): a project picked on the panel sends its Program Change on the output channel. The project’s CCs stay on 16.
• In Setup, Synth 1 / 2 pick their track also when you entered Setup from their view (before, they arrived as Preset).
• Patch flip (B8) still goes out on its MIDI track’s channel, never on the general output channel.

General MIDI mode of the drums (Beta 3.22 only)

To play a General MIDI drum module or plugin with the device's drums. In the Setup view (not in Advanced Setup):

• While on, every hit of Drum 1-4 (from the sequencer or the pads) goes out over MIDI with its GM note instead of 60 / 62 / 64 / 65, on the Setup's drums channel (10 by default). The internal sound does not change.
• Heard and seen: every new note sounds once on the drums' channel, and its number is drawn on the 32 pads in the drum's colour. Shift or leaving Setup confirms it (saved in the settings) and the Setup pads come back; while the number shows, the Setup pads do nothing.
• LEDs: K4 green / dim; K5-K8 in each drum's colour, brighter for a higher note (dark with the mode off).
• A note already sounding ends with the note it started with, even if you change the GM note or turn the mode off meanwhile.
• Saved in the device settings (bytes nobody uses); the original firmware ignores it.

B8Patch flip on MIDI 1 / 2

• MIDI 1 / 2 Preset view, pad 26: the notes of the track send Program Change.
• It switches off when the track engine is switched on (pad 27), and the other way round.

C1Engine of the MIDI tracks (pad 27)

Each MIDI track gets its own “synth”: the track’s audio input (line 1 for MIDI 1, line 2 for MIDI 2) or an internal engine goes through VCA, effect and filter, with envelope and LFO, before mixer strip 3 / 4. The notes of the track trigger it. The track still sends its MIDI.

Beta 3.22 only: a tap on pad 27 opens the engines on pads 17-23 (in their colours, the current one bright); tapping one picks it; pad 27 again brings the patch list back. Shift + pad 27 steps to the next.

States of pad 27

Pads of the Preset view

Page 1 — VCA-VCF

Type knobs: colour = type, brightness = position inside the type.

Page 2 — OSC 1 (with the oscillator / VA-drum)

Page 3 (OSC 2): K1 TUNE 2 / FINE 2, K2 SHAPE 2 / FM, Shift + K3 RING, K7 WAVE 2 (since RC2: all eight without Shift, K1 TUNE 2, K2 SHAPE 2, K3 MIX, K4 FM, K5 FINE 2, K6 BITSYNC, K7 WAVE 2, K8 RING). Page 4: the 8 sequenceable values (B6). Page 5: ADSR on top, LFO at the bottom (since RC2: Shift + K8 = the LFO's shape, six shapes; Since RC2.02: seven, with the slewed sample & hold, and the triangle when the project saves none).

• Beta 3.22 only: the whole MIDI 1 / 2 own synth (engine, values, matrix, page 4, FM) is saved with the project and comes back when it is loaded (in the free bytes of MIDI 1 / 2's patterns 1-5; an older project does not carry it and the sound stays).
• The engine values are saved in the device (not with the project); the OSC 2 ones, the Shift knobs of the granular and the oscillator and pads 28 / 29 too since Beta 1.28 (before, they went back to their defaults at power-up).

C2Step-drummer

Opening and closing

• Pad 30 bright = view open; dim = closed. On MIDI, Shift + pad 30 disables the step-drummer. since RC2: on MIDI, dim = off, bright = on.

Controls

• Pitch on MIDI: the pair value offsets the destination: pitch of both oscillators, OSC 2 pitch, WAVE, FM, MIX, env → filter, SHAPE, decay (64 = no change: it adds to or takes from the value on the engine's page; since RC2: the knob LED dim at the centre and brighter the further it goes).
• Pitch on the synths: the value is the macro position, written as automation.
• Each step keeps the pitch of its first note; a new note takes the pair’s or the previous one.
• Real-time recording: with Record on, playing a step also records it on the step that plays, with its microstep.

Page 2 and the pitch-vel toggle (since RC2)

• Velocity page, pads 17-24 = page 2's own destination (the same pad again = none). With a destination the knobs write the pair's value (MIDI: from 64, in REL's lane, which is neither played nor recorded while the step-drummer is on; synths: that macro's automation, from 0). With no destination and no toggle, page 2 does nothing.
• Pad 32 = the pitch-vel toggle (green): on top of their destinations, the pitch page transposes every note of the track by one degree of the project's scale (stock or custom) every 8 knob steps (MIDI −8 … +8 from the centre, synths 0 … +16 from 0) and the velocity page also sets the velocity, as before. With the toggle, the pitch page's pitch destinations do not move the own synth. Saved with the project.
• On the synths an empty pair starts at 0.

C3FX sequencer

1. 1. On MIDI 1 / 2, set pad 27 to blue. The step-drummer of the track switches on.
2. 2. Open its view with pad 30. Put notes on the steps with Shift + pad.
3. 3. Each knob (a pair of steps) picks a slot of the Master FX bottom row:

1. 4. While the sequencer runs, every step with a note switches on what that slot holds: an effect (with its copy of the parameters) or the Glitch. The knob LED takes the colour of that effect; off = none.

• Assign the effects to the bottom row in Master FX first (C7).
• The track makes no sound in the DSP; its notes still go out over MIDI.
• Leaving the blue state switches the step-drummer of the track off.

C4Song pointer (Master FX)

• One held step: retrigger, the step repeats while you hold it.
• Two held steps: the pattern loops between them while you hold them.
• Shift + two steps: latched phrase; pad 9 turns white and touching it clears it.
• Phrase mode (SC34.2): Shift + a step enters the mode with that step as start and 16 as end. In the mode, touching a step moves the end (no retrigger); Shift + another step moves the start; Shift + the start or the white pad 9 exits.
• The playhead is white while the sequencer runs. When a project loads it starts off.

C5Captured sample

Recording (pad 32, Master FX and FX view)

• Hold: records while held (up to 3.46 s).
• Short press: records until the next press.
• Master FX effects (from RC0.5): the sample that plays goes through the Master FX effects; the capture records the output without them (in RC0-RC0.4 it was the other way round: the capture held the effects and the sample played without them).
• Master filter (since RC2.01): the capture and the sample that plays sit before the master filter: the filter acts on the sample as it plays and the capture records the mix without the filter (up to RC2 the other way round: the capture held the filter and the sample played without it).
• Shift + pad 32: armed: with the transport running it records the next bar; stopped, it starts when you press Play, from the first beat, and records that bar (from RC0.4; it used to start a bar late).

Playing (pad 7)

• Press pad 7: it plays and its knobs move to K1-K4: K1 pitch (±24 semitones), K2 mode (yellow one-shot, green gate, blue loop), K3 start, K4 end (end < start = reversed).
• Shift + pad 7: a latched loop, in any mode, until you press pad 7 again (or pad 8); the same with Shift + a slot of the sample (from RC0.4; in RC0-RC0.3 it only played while held).
• The loop mode (K2 blue) is a different thing: it only plays while you hold the pad and stops when you release it.

Assigning

Hold pad 7 and touch a pad of the bottom row: that slot plays the sample with a copy of its knobs.

C6Glitch (pad 6) and its assignment

• Holding pad 6: the master output is replaced by a tape head reading the recent audio (D6). On release the normal audio comes back.
• When pressed in Master FX, K1-K4 are its parameters:

• Assign: hold pad 6 and touch a bottom-row pad (without Shift): that slot stores a Glitch with the current copy of K1-K4 and lights turquoise. Touching that slot plays it with its values.
• Two Glitch slots at once: the last one you press plays; release it and the other one comes back with its values. Neither copies the other’s values (in RC0, pressing one while another played copied its knobs).
• Pad 6 lights while the Glitch plays.

C7Assignable bottom row (Master FX / FX)

• Pads 26-30: assignable slots (31 is the mechanical gesture). An unassigned slot is the stock performance effect of the FX view.
• Assign: hold the effect on top (pads 1-6), pad 7 (sample) or pad 31 (mechanical gesture) and touch the slot.
• Touching the slot: loads its copy of the parameters and enables the effect while held. Shift + slot latches it.
• The assignments travel with the project and come back at power-on; when switching sessions the ones in RAM stay.
• The FX sequencer (C3) triggers these slots.

C8Random-mutate per step

1. 1. On Synth 1 / 2 or MIDI 1 / 2, press Shift + Pattern Settings: the original’s probability view. Row 3 is still the chance of the step playing.
2. 2. Hold a step that has notes and touch a pad of row 4 (peach):

• Scale: the note changes to another note of the project’s scale, within the same octave. Octave: it goes one octave up or down (at random). Every note of a chord is drawn separately, each time the step plays.
• Without Record the changed note plays that once and the step does not change. With Record the changed note is written into the step (the sequence drifts).
• Tied notes are not changed.
• The value is stored in the step, with the pattern and the project. The drums do not have it.

C9Step frequency and dynamics

• Mode 1 (press Pattern Settings twice): row 3 = the usual probability; row 4 = frequency, in yellow: with n the step sounds on the last of every n plays of the pattern. Each pattern counts its plays from Play.
• Mode 2 (pad 25 of the Pattern Settings view): row 3 = dynamics, row 4 = random-mutate.
• Clear + pad 25 (since RC2): clears the dynamics and the random-mutate of every step of the pattern; the frequency stays.

• Everything is saved with the step. With Record and mode 2 on the screen, what sounds (the mutated note, the dynamics) is written into the pattern.

On the drums (since RC2)

• The same view for a drum (Pattern Settings twice = mode 1; pad 25 of its Pattern Settings = mode 2): mode 1 row 4 = frequency; mode 2: row 3 = dynamics (they only delay the hit inside its step), pads 25-28 = random-mutate of the sample: none, 25 % of ±1 (the next one in its row of 8), 25 % of ±8 (another row), 12 % of each.
• They live in bytes of the pattern the stock does not use: they travel when duplicated and with Nudge; the first time they are cleared in the project's 32 drum patterns.

C10Pattern chains and scenes

• Chain mode: in the Patterns view, Shift + Octave ▲ switches it on (Octave ▲ green) and Shift + Octave ▼ off. While Shift is held, the Octave button that does something is yellow. The mode stays on when you leave the view.
• Editing a rule (with the mode on): press a pattern = A (yellow; it is selected as usual). A again = one more play (up to 8; the knob LEDs count them). Another pattern of the track = B (green) and the next one = C (red). Examples: n = 3 → A A A B A A A C; no C → A A A B; n = 1 → A B A C.
• B and C play once and the track returns to A (unless they carry a rule of their own).
• Clear + pattern in the mode: removes the rule; with no rule it clears the pattern as usual. Out of the mode, Clear clears the pattern, its rule and its play order.
• With the mode off the rules stay stored but are not followed: patterns play as on the original device.
• Scenes (Mixer view): a scene saved with the chain mode on remembers it and shows in peach; loading it brings the mode back, and loading a normal scene switches it off. That is how chained and normal scenes mix. Tracks that are following a rule blink in the Mixer.
• A scene ends when its longest chain ends (on the return from C, or from B when there is no C).
• Scene repeats: in the Mixer, Shift + pads 9-16 set 1-8 repeats of the current scene (with Shift the row is yellow and the chosen one green). Beta 3.22 only: while playing, with Shift, the repeat now playing is white (pad 9 = the first time; on the last one the green pad blinks white / green). During the repeats the mutes are the ones you left and the chains go on where they were.
• The rules are saved with the pattern (they travel when it is duplicated); the mode and the scene data, with the project.

C11Nudge and play orders

• Nudge (pad 26, orange): rewrites the pattern so that the chosen first step becomes step 1; what was in front of it goes to the end. It rotates whole steps with their automation, over 16 steps (a pattern of up to 16) or over 32. The last step moves with it (steps 6-13 → 1-8).
• Fractal (pad 27): 1 · 1 2 · 1 2 3 · 1 2 3 4 … up to the last step, then again.
• Deconstructed (pad 28): the diagonals of the grid: 1 6 11 16 · 2 7 12 13 · 3 8 9 14 · 4 5 10 15 (and the same with 17-32). Steps outside the pattern are skipped: with 8 steps, 1 6 2 7 3 8 4 5.
• Pads 27 / 28 and the four direction pads (29-32) exclude each other and share colours.
• The pattern “ends” (for chains, scenes and the frequency) when the whole run ends.
• The order is saved with the pattern. Clearing the pattern removes it.

C12Arpeggiator (since RC2)

• With Shift, pad 25 and pads 27-32 show yellow and the chosen ones green; without Shift, pad 25 shows green while the arpeggiator is on.
• Sequence: when two or more notes start on a step, they play one a step (at the pattern's sync rate) in the chosen order, over the notes sorted by pitch, for as long as the chord's longest note. Each note lasts a step and keeps its velocity. The step's random-mutate and dynamics do not apply to them.
• Input: the first note sounds as always; holding another one with it starts the arpeggio of the held notes, one a step (stopped: at the project's tempo and the track's sync rate), until all are let go. With Record the chord is recorded: the sequence plays the arpeggio afterwards.
• Beta 3.22 only — pressed order: the notes go in the order they were pressed, not by pitch (the orders walk that order); a note let go leaves its place empty (skipped) and the next one takes the first free place. Random-mutate: the level of the chord's step applies to each note of the arpeggio; live, that of the step the track is on.
• Since RC2.04: a note or chord held longer than 16 steps while recording goes on, tied, 16 steps later (the stock cut it at step 16).
• Saved with the project, per track and pattern.
• Shift + pads 17-24 = the arpeggio's own resolution (1/4 … 1/32T, in the sync rate's order; the same pad again = the track's). Each note of the chord lasts its own gate.
• Drums (since RC2): the same gestures in a drum's Pattern Settings; in its Preset view, holding several samples = the arpeggio of the samples (the drum jumps from one to another), on the drum's grid while playing and at the tempo when stopped; with Record it is recorded (micro step and sample flip).
• Gate by holding (Micro Step view = Gate twice, pad 32, per track): when entering notes by hand, how long you hold the pad is the gate. Pad 31 = fixed length (with both off it opens the selector; picking a length turns it on). A toggle that is on turns off when pressed again; pressing the other one switches.

C13Drums micro-step rollers (since RC2)

• Each column is the drum of its box below (with the mirrored copy: columns 1-4 = drums 4-1, 5-8 = drums 1-4); dim in the drum's colour, lit while held.
• Several at once combine; with the step's velocity (100 on an empty step); with Record they are recorded into the pattern.

C14Custom scale (since RC2)

• The editor's keyboard: two octaves of a piano from the root (rows 4 / 3 the first octave, white / black; rows 2 / 1 the second). The highest key pressed is the period (orange), the others the notes (green).
• It drives playing, the lit notes of the sequence, quantising and random-mutate. A stock scale switches it off; the editor switches it on again.
• Beta 3.22 only — Jankó: in the editor, Shift + pad 8 turns on the isomorphic Jankó layout: every row a semitone up and every column a whole tone, the bottom-left pad = the root; every chord type has the same shape in any key. All 12 notes are in the scale (they all light, random-mutate picks any of its octave). Octave = a semitone; Shift + Octave still transposes the pattern. Saved with the project.

C15Chord screen (Beta 3.22 only)

• Row 1: major, minor, 7, m7, maj7, sus4, dim, aug; Shift + pads 1-7: sus2, 6, m6, add9, 9, 7sus4, fifth (yellow with Shift, the chosen one white; Shift + pad 8 = on / off).
• Row 2: pads 9-12 the inversion (root position, 1st, 2nd, 3rd; orange), pad 13 open voicing, pad 14 the root an octave down, pad 15 diatonic (thirds of the project's scale, the custom one and Jankó too), pad 16 latch.
• Rows 3-4: the roots, the same notes as the Note view's keyboard (scale, root, Octave, Jankó); up to 6 notes, with the pad's velocity.
• It sounds and is recorded with Record as plain notes of the pattern (it plays back the same without the screen); the arpeggiator arpeggiates the chord. The type and the modifiers are not saved.

C16Sample mode of the MIDI tracks (since RC2)

• Picking the sample: in the expanded Note view, rows 3-4 = 16 samples of the pack; Octave ▼ = next page, ▲ = previous (4 pages, the 64 samples; the button lights when there are more pages that way). Touching a sample = the track's sample (cyan), and it sounds (note 60). It is the same value as the granular's source (Shift + K8 on its page): changing one changes the other; the capture is picked there.
• Sample flip: rows 1-2 = the 16 steps of the half shown (1-16 / 17-32 = the other half). Hold a step and touch a sample = that step plays that sample (peach; the held step green, its sample yellow); since RC2.04 also hold a sample and touch steps; Clear + step = no flip (dim cyan, the background of rows 1-2). The step playing, white. A flip on a step with no note does nothing.
• Live: with Record + Play, touching a sample records a note 60 on the step playing, and its flip.
• The pitch comes from the track's notes (the normal Note view, the step-drummer, incoming MIDI): C3 = as recorded, an octave up = twice as fast. One voice per track, like a drum: every note restarts the sample; the note-off does not cut it, it plays to its end.
• The VCA open: in this mode the envelope does not close the VCA (gain, velocity and LFO → level still work); the other engines as before.
• Saved: the track's sample with the engine values (device settings); the flips in the pattern: they travel with the pattern and the project. They live in the track's level automation lane (Mixer): a flip replaces the level automation of its step (the other steps' still plays) and recording the level over it erases the flips of those steps.
• Without the sample mode, the expanded Note view is the usual one.

C17Mod matrix of the own synth (since RC2.02)

• Sources: K1 velocity, K2 the note (C3 = 0), K3 a random value at each note, K4 LFO 2, K5 envelope 2 (attack / decay from each note), K6 a decay from each hit of a drum, K7 the pattern position (first to last step), K8 a random value every N steps.
• With Shift: K4 = shape (triangle, saw, square, sample & hold, slewed sample & hold) × rate (0.05-20 Hz); K5 = attack (0 / short / medium / long) × decay (20 ms-4 s); K6 = drum 1-4 × decay; K8 = N (1, 2, 4, 8, 16). Their LED in the zone's colour.
• LEDs: the knob in the colour of the destination's page and the brightness of the amount. While you turn (and 1.5 s after) the pads show the destination: its page (pads 1-5) and its knob on that page (pads 9-16 = K1-K8, 17-24 = Shift + K1-K8).
• Full amount = the source sweeps the parameter's whole range; it is added to the stored value when sent (the stored value does not change). Several sources on one destination add up.
• Clear + knob = source off; Clear + Shift + knob = its parameter back to the default; Clear + pad 6 = all off.
• Saved with the own-synth patches (A14); not with the project nor across a power-down. No CC / NRPN. Some 100-250 updates a second, shared by what moves on the track.

C184-operator FM (Beta 3.22 only)

• A/R envelopes with a fixed sustain: the sustained operators stay up while the note is held; the percussive ones (by the algorithm) fall with the release even while it is held.
• 16 algorithms: 8 classic (stack, branches, two stacks, organ…), 4 percussive (kick and snare with a pitch drop, inharmonic metal / hi-hat, tom / zap), 2 bells (inharmonic ratios) and 2 strings (detuned carriers). The LED of Shift + K5 in the family's colour.
• White noise with one operator's envelope, in any algorithm. The note, TUNE / FINE, the pitch envelope and the vibrato of the oscillator, the VCA-VCF, the effect and the matrix still apply.
• Clear + knob = its initial value; Clear + pad 7 = all of them. Saved with the own-synth patches (A14). No CC / NRPN.

C19Master FX since RC2: mechanical gesture, Glitch, Digitise and saving per session

• Pad 6 = Glitch (it replaces the Vinyl): held, latched, assignable to the slots and to the FX sequencer like the other effects; its K1-K4 are the Glitch’s.
• Pad 31 = mechanical gesture: on press the audio slows down to a stop; on release it starts again. K1 = moves per gesture (1-8), K2 = type, blended continuously and shown in colours (tape stop → baby scratch → tear → back spin → rattle), K3 = stop time, K4 = start time.
• Digitise: K1 sample rate, K2 bits, K3 = send to the delay while pad 4 is held (every track; on release their sends return), K4 = envelope of the amount (right: from full to clean; left: it grows).
• Per session: the 20 knobs of the top row, the assignment of the bottom-row slots and the attack / release of the master compressor are saved when the project is saved and return when it is loaded. A project without them (an old or a new one) leaves the device as it is. Latched effects are not saved.

D1Master FX effects

• Hold = active; Shift = latched. The brightness of the knob LEDs shows the value.

D2VCA-VCF of the MIDI tracks

• Per-voice chain: VCA → effect → filter, or filter → VCA → effect (pad 29).
• State-variable filter with key tracking; 24 dB LP / HP = two stages.
• VCA with ADSR, velocity, gain up to +18 dB with soft saturation.
• LFO with seven shapes (triangle by default; page 5, Shift + K8) to level, filter, pitch, shape and morph.
• The default values let the input through clean.

D3Oscillators and paraphony

• OSC 1: WAVE is a continuous morph (0 sine, 42 triangle, 84 saw, 126 square); SHAPE (centre = the pure wave): on the sine and the triangle, right of centre it folds them (wavefold, up to x8; left of centre nothing); on the saw it bends the ramp (left: rises fast and flattens; right: starts flat and rises at the end; Beta 3.22 only: from a plain saw fully left to a supersaw of 7 saws fully right, and on the triangle, left of centre, exponential ramps); on the square it changes the pulse width (centre 50 %, towards either end a narrow pulse, 3 % to 97 %). With WAVE between two waves it acts on both. Envelope and LFO move pitch, shape and morph.
• OSC 2 (pad 28): its own TUNE / FINE / WAVE / SHAPE; MIX, FM (OSC 2 → OSC 1 phase), RING and BITSYNC (soft sync every N cycles, xor, or, nor, and, nand).
• Paraphony: one note = unison; two = one per oscillator (since RC2: with one oscillator the last note has priority; releasing it goes back to the previous one).

D4VA-drum engine

• Pad 31: velocity also sets the level of the pitch and filter envelopes.
• Kick: sine, Decay ~70, Sustain ~30, Env → pitch to the right. Snare: more noise, short Decay, band pass.

D5Granular synth

Magenta state of pad 27; pad 2 of the page row = granular page.

• Pitch mode: the note changes the pitch of the grains; with two notes they are shared between both.
• Slicer mode: the note picks one of 16 slices of the sample.
• Stretch mode (since RC2): the stretch from K2 to the end of the sample lasts K3 steps (1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48 or 64; K3’s LED shows it) at any tempo, without changing the pitch, and starts again in step with the start of the transport; the notes change the pitch as in pitch mode. With the transport stopped it stands still. K7 / K8 do little in this mode.
• It goes through the VCA-VCF of page 1. It shares its saved values with the oscillator page.

D6Glitch engine

• The master is recorded all the time into a 2.7 s stereo ring.
• On press, the head starts at “now − delay” with a short fade-in.
• Negative speed = backwards; near 0 = tape stop.
• Repeat: at the end of each segment it goes back to its start; at maximum, continuous delay without fades.
• Chaos: random jumps back, silences and reversals.
• Overload (K4 in the upper half, from RC0.2): imitates what was heard when the DSP sample memory was really overloaded (SC35DB): in every 32-sample block, with a probability that grows with K4, the block “comes late” (the head goes 32 samples back and catches up at the next late block); from K4 ≈ 96 the head also brakes down to 0.43 ×. It is a simulation: the DSP is not loaded, so the sequencer, the MIDI clock and the rest of the audio are not affected.

D7Drum DSP

• State-variable filter per drum (DJ, band pass, notch), comb with feedback and the stock EQ tilt.
• Ring mod with its own oscillator, tremolo / vibrato LFO, soft / hard / folded distortion, bitcrush.
• Sidechain between drums: Shift + FX and Octave ▼: ducking pages per drum (rows 3-4) and which drum triggers it (row 1, pads 5-8). since RC2: row 1 pads 1-4 = Synth 1, Synth 2, MIDI 1, MIDI 2 as the trigger (every note of their pattern).

D8Audio inputs and returns

• The synths can use input 1 / 2 (or inverted) instead of the noise (A6).
• With the Setup returns on strips 3 / 4, the sends of those strips send the return again, already processed by the VCF / FX of the track, to the reverb and the delay.

E1What is saved and where

E2The internal memory pack: read only

• Refused (the Save LED lights red for 1.5 s): saving the captured sample with the project, exchanging or copying samples and patches into the internal pack, saving synth or own-synth patches in it, copying projects into it and deleting it from the Packs view.
• Works: playing and loading what the internal pack holds, and copying from it to a pack of the card (Duplicate + A in the internal pack, load the other pack, Duplicate + B).
• Unchanged: the device’s own saves (Save of a project). What the mod keeps inside the project (chains, Master FX per session…) goes inside that normal save, in the internal memory too. Still, with the builds that do not end in “S” it is better not to use the internal memory for projects: the installer asks for that.
• The “S” builds write nothing of their own to any memory.

E3Installing and going back

1. 0. Without building: tools/rc_uploader.html patches the official firmware ([Novation download](https://components.novationmusic.com/api/v2/firmwares/168/file)) in the browser and sends it. Pick RC2.09, RC2.09S (or the earlier RC2.09 / RC2.09S, RC2.06 / RC2.06S, RC2.05 / RC2.05S, RC2.04 / RC2.04S, RC2.02 / RC2.02S, RC2.01 / RC2.01S, RC2 / RC2S, RC0.9 / RC0.9S) or “Official”.
2. 1. Open tools/ct_uploader.html in Chrome and connect the Circuit Tracks over USB.
3. 2. Pick the .syx from firmware/<version>/: the uploader checks its SHA-256.
4. 3. Send. Novation’s bootloader is not modified.

• Going back: send another version or the official firmware. If the device does not start: hold Scales + Preset + Note at power-on (bootloader recovery mode).
• The RC branch does not publish .syx files: they are generated with tools/patch_official.py from the official firmware.
• RC2.09 (files and marker R209) = RC2.08 + a fix: the drums' sample start (Shift + K3 to the left) now covers the whole sample; before, it reached the end at a quarter of the knob's travel and beyond that the hit was silent. Projects that already used the start have it 4 times closer to the beginning.
• RC2.08 (files and marker R208) = RC2.06 + two fixes (RC2.07 was not published on its own): with the Micro Step view's fixed length, the selector no longer leaves its lights when a length is picked, and the length goes to every note entered by hand (chords too, and whichever of the step or the note is let go first); an external keyboard on the channel of MIDI 1 / 2 plays its own synth (before, it was only recorded).
• RC2.06 (files and marker R206) = RC2.05 + a fix: two pads of the same note held together (pads 17 and 32, the same C) left the note sounding until touched again; now the second one strikes it again and it stops when let go.
• RC2.05 (files and marker R205) = RC2.04 + a fix: changing the custom scale with the transport running could hang the device (a note not on the keyboard wrote its pad's light out of place); now those notes light no pad.
• RC2.04 (files and marker R204) = RC2.02 + three fixes: the count-in follows the project's tempo (RC2.03, not published on its own); recorded notes of 16 steps or more are no longer cut to 16 steps (they stay tied until released, the arpeggiator's too); in the sample mode's sample picker, holding a sample and tapping steps = those steps' flip.
• RC2.02 (files and marker R202) = RC2.01 + everything marked since RC2.02: the mod matrix of the own synth, the split keyboard with any pair of note tracks and the LFO with a triangle by default and slewed sample & hold (what Beta 3.0 had).
• RC2.01 (files and marker R201) = RC2 + the captured sample before the master filter (the filter acts on it as it plays; the capture records the mix without the filter).
• RC2 (release candidate 2, marker RC2) = SC44 = RC0.9 + everything this manual marks since RC2: what betas 1.0-1.30 had (mechanical gesture and Glitch on pad 6, Digitise K3 / K4, Master FX per session, side-chain and compressor knobs, step frequency, dynamics and random-mutate, pattern chains and scenes, Nudge and play orders, own-synth patches, arpeggiators, rollers, custom scale, count-in, cue mode, side-chain from the note tracks, quantize, LFO shapes, sample mode…) and their fixes. Much of it is untested on the device: use it with a backup of the SD card.
• RC0.9 (tenth release candidate) = RC0.8 + the internal memory pack, read only for the mod; RC0.8 = RC0.7 + one fix (the pitch knobs of the step-drummer keep their value: since RC0 every turn wrote only its own delta); RC0.7 = RC0.6 + two fixes (the step-drummer, the FX sequencer and the stretch follow the pattern of their own track, not another one’s; the selector knob of the FX sequencer is slower); RC0.6 = RC0.5 + two fixes (the LFO of the Auto-Filter and of the Phaser starts when the effect comes on; the dim white of Clear no longer pulses); RC0.5 = RC0.4 + the captured sample in front of the Master FX effects; RC0.4 = RC0.3 + the fixes of SC38.2-SC38.6; RC0.3 = SC38, RC0.2 = SC37.5, RC0.1 = SC37.4, RC0 = SC36.2.
• Safer build: RC2.09S (files R209S; before, RC2.08S, RC2.06S, RC2.05S, RC2.04S, RC2.02S, RC2.01S, RC2S) = RC2.09, but everything the mod would ask to write or delete on the card or in the internal memory is refused (the Save LED turns red): saving the capture with the project (A8), exchanges and copies of samples and patches between packs, the own-synth patches, saving the synth patch, copying projects and deleting packs do nothing; the original's saves (projects, patches, settings) work. The earlier ones: RC0.9S = RC0.9 without those features. Back up the SD card before installing any version.
• New features and fixes of every version: [docs/CHANGELOG.md](https://github.com/Ghillermo/CIRCUIT-HACKS-RC/blob/main/docs/CHANGELOG.md#changelog).

E4Development and diagnostic tools

• tools/build_scNN.py: every version is built from the official firmware; verify_builds.py checks they all give the same SHA-256.
• tools/emu_*.py: emulation tests (Unicorn for the ARM, dsp56300 for the DSP).
• tools/ctremote.py + rdiag: the PC reads memory, card items and the device’s capture over SysEx. Only in the diagnostic builds and in SC35 / SC36: SC36.1, SC36.2, the RCs (RC0 … RC2 and their safer builds) and the betas do not include it, to leave the USB protocol alone.
• docs/NOTAS.md: technical map of everything found (in Spanish).

E5MIDI tables

MIDI track engine — track channel

The rest, NRPN MSB 4 with LSB = code (4, 12, 13, 15, 16, 21-26, 32, 33).

Drums — NRPN MSB 5 / 6 / 7 / 8 = Drum 1-4

LSB 1 pitch env., 2 ring (frequency), 3 LFO, 4 LFO speed, 5 env → cutoff, 6 resonance, 7 envelope shape, 8 ring (amount), 9 filter mode, 10 start (0-120; before 0-15), 11 bitcrush, 12 distortion type, 13 cut (0-120), 14 attack.

Master FX — channel 16, NRPN MSB 9

LSB = 4 × set + knob: Gater 0-3, Auto-Filter 4-7, Digitise 8-11, Phaser 12-15, Glitch 16-19 (in RC0.9, Vinyl).