Four-channel pattern editor
Paint gates and notes across CH1–4, expand a channel for the piano roll, mute/solo per lane, and save straight back to `.SEQ` on disk.
Black Sequencer
Edit the card before it hits the rack.
A local companion for Erica Synths Black Sequencer SD projects — patterns, songs, MIDI in, and a Mutable Instruments preview voice so you can hear what you write.
Preview rack that actually sings
Factory voice: Plaits lead, Rings pads, Plaits bass, Peaks drums — cable them how you like. Preview audio is a working sketch, not a hardware clone.
Studio ↔ card
Keep projects in a local studio library, then push to a mounted SD volume that already has `PROJECTS/`. Duplicate, rename, delete without leaving the editor.
Also in the box
- MIDI import Map SMF tracks or channels onto CH1–4.
- MIDI record Arm Rec, play from a controller, write into the selected track.
- Song chains Arrange patterns into songs the module understands.
- Shipped demo DEMO BANK at 100 BPM — boom-bap, techno, ambient starters.
Download
macOS app from the latest GitHub Release. First launch seeds the demo bank into Application Support.
Not on a Mac, or prefer source? Install Python deps and run python3 -m blackseq --desktop from the repo — same UI on Linux and Windows.
Still a work in progress
This started as a personal tool and it’s shared as-is. Not every corner is tested, and things will break. If something feels wrong, please open an issue on GitHub — bugs, weird SD-card behavior, “I expected X” notes all help.