It features an intuitive workflow inspired by Elektron instruments with per-trigger parametrization that allows access to the 4 DMG sound ch

STEPPER: A 16-step sequencer for the Game Boy Advance

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2025-01-03 13:00:07

It features an intuitive workflow inspired by Elektron instruments with per-trigger parametrization that allows access to the 4 DMG sound channels in the console (2 square waves channels, 1 custom wave channel and 1 noise channel). Supports 6 banks of 8 patterns that can be queued for live performance.

This project is open source and can be downloaded for free here. If you want to support its development you can also get the playable rom via itch.io (Pay what you want). STEPPER is best run on real hardware but you can try it on emulators, though some can introduce sound bugs. You can also try it out directly in the browser.

STEPPER supports up to 6 banks of 8 patterns each. The current bank is saved by switching banks or selecting the current one in the bank section (If the auto-save option is active). The banks are saved to the SRAM and upon launching STEPPER the last saved state will be loaded. Use “Select + Start” to manually save the current bank.

Notes can be changed by pressing "L" or "R" over an active trigger. If the cursor is on the channel selection mode, "L" and "R" will transpose all trigger notes instead. Holding "Select" while adjusting notes will make it jump by an octave instead of a semitone.