[todd-neale]

Summary

digidice: a random melody generator for the Digitakt mk1 (OS 1.54), inspired by Vermona's meloDICEr. A double press on TRIG opens a page that rolls a melody into the active track, audio or MIDI, as ordinary trigs with NOTE, VEL and LEN. After that it is a normal pattern: play it, edit it, save it or copy it.

Knob		Knob
A DENSITY	how many notes	E ROOT	the key
B NOTE VALUE	gap in steps (1, 2, 3, 4, 6, 8)	F SCALE	8 scales, every note stays in it
C VARIATION	gaps halve or double	G RANGE	scale notes above the root
D LEGATO	note length; 127 ties	H VEL	velocity spread

YES rolls everything, LEFT only the rhythm, RIGHT only the notes; NO or another double press on TRIG closes. Turning a knob reshapes the current melody rather than replacing it, and raising DENSITY only adds notes. digidice keeps no clock: it writes trigs through the OS's own step setters from the UI task, and the sequencer plays them with the project's tempo, swing, track length and speed.

It is a draft (sdk/drafts/digidice), with the full module layout. It moves to sdk/digitakt/modules/ once it has run on a unit (author-hardware) and has an .elemod release for the browser builder to pin. The library tests require that pin for every Digitakt module. The steps are in its TESTING.md.

Files

• sdk/drafts/digidice/:
  • modwerk.module.json and build.json
  • src/ (the mod, and the engine from the first commit)
  • tests/test_engine.c
  • README with a tutorial, TESTING, evidence/emulator.md
  • three emulator screenshots and a thumbnail
  • MIT licence
• sdk/digitakt/research/pattern-write.md: what the emulator confirmed and what it did not (the undo snapshot).
• From the first commit: sdk/digitakt/research/dtpeek.py.

No firmware, extracted code or tables, dumps or built images are included.

Testing

• npm run check: passes (805 tests), with Python 3.14 first on PATH. macOS's Python 3.9 fails an existing f-string test on clean main too.
• npm run module:doctor -- digidice, run with the folder in sdk/digitakt/modules/: manifest, category guide and module rules pass. The browser builder fails as expected, since no .elemod release exists yet.
• Engine: 4,975,802 host checks, 0 failures under ASan and UBSan.
• digiemu v0.4.1 (irpina) on OS 1.54, core 2.1 (report: sdk/drafts/digidice/evidence/emulator.md):
  • emu.fwcheck passes.
  • The page opens on a double press on TRIG (key flags 19/5); stock does nothing on that press.
  • Rolls, knob changes and closing all work, on audio and MIDI tracks.
  • With a 440 Hz test sample, the recorded audio plays the rolled notes at the right steps and pitches, and loops after 16 steps.
  • Beside other mods: it links beside any two of digihealth, DIGISLICER and NEIGHBOR. All four exceed core 2.1's 128 KiB by 1,532 bytes. Beside digihealth and DIGISLICER it passes emu.fwcheck, and the screens after closing are identical to stock's.
• Emulator limitation: digiemu 0.4.1 lists OS 1.54 as untested, and there stock 1.54 itself stops its UI after CLEAR PATTERN (a heap fault). Each stop seen while testing was reproduced on stock before drawing a conclusion.
• Hardware: not tested yet.

🤖 Generated with Claude Code