OP-1 Scale Quantization

Firmware mod adding in-scale note quantization to the original OP-1

OP-1 screen showing the scale-quantization mod (Scale C#, Type Lydian) — The mod adds a scale/quantization page to the OP-1 (here, C# Lydian).© Zach Gage (stfj)

About

A community firmware modification for the original OP-1 that adds in-scale note quantization — the notes you play snap to a chosen scale, a feature the OP-1 never shipped with. The author decompiled the OP-1 firmware (v246) to build it, a genuine reverse-engineering effort. Flashing modified firmware is experimental and entirely at your own risk, so treat this as an advanced/curiosity project rather than a daily driver.

Devices

OP-1

Pricing

open-source — Free and open-source.

License

open-source

Zach Gage (stfj)

Last verified

Jun 6, 2026

Source: RedditSource: GitHub