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Overtone adds new synth engines to the Digitone II

A maker used Claude Code to develop Overtone, a Digitone II firmware patch with new sound engines, per-track effects and a groove editor.

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Credits

  • Repository account complex-ping Source ↗
  • Source byline Lapin Source ↗

Earliest dated source: 30 Oct 2026

Code ↗

The full story

Overtone extends Elektron's Digitone II OS 1.12 with four new machines, insert effects, additional modulation and a step-based groove editor. The maker credits Claude Code and reports checking each build in ColdFire and SHARC emulators before testing it on the instrument.

The project supplies a patcher for the owner's official firmware file rather than distributing Elektron's firmware. Its documentation lists compatibility and processor-load limits, including audio crackling when demanding machines exhaust the DSP.

How it was done

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Sources

From a short post by the maker, so the details are as they tell them.

  • ElektronMods: Overtone - Custom Digitone 2 FirmwareForum threadelektronmods.com

    The maker’s post on ElektronMods.

  • The code: github.comCode or repositorygithub.com
    Repository account: complex-ping

    The project files and the author’s documentation.

  • ElektronMods: Overtone - Custom Digitone 2 FirmwareForum threadelektronmods.com

    Another source for the same project.

  • Awesome Music Gear Firmware: Add Overtone for Digitone IICode or repositorygithub.com
    Source byline: LapinPublished 30 Oct 2026

    A related contribution with implementation and verification details.

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