Polymeter is a MIDI sequencer for music that's in multiple prime meters (1, 2, 3, 5, 7, 11, etc.) simultaneously. Each track has its own loop length, and when the lengths differ, the tracks "slip" (or shift phase) relative to each other. The resulting interference pattern is sufficiently intricate that variations similar to the embellishments of a live performer can be generated algorithmically.
The current project is based on software I developed in the 1990s in order to compose polymeter-based electronic dance music. I'm rescuing from bit rot what might be (for all I know) the world's only sequencer optimized for polymeter. It's a long battle, but it's worth it to be able to compose complex polymeter again.
May 19, 2018
May 10, 2018
Version 0.0.4 adds step editing commands.
May 4, 2018
Version 0.0.3 supports tied notes, via Shift+left-click in steps view.
Apr 29, 2018
Version 0.0.1 allows unlimited track length, thanks to a completely redesigned UI.
Apr 22, 2018
The initial alpha (0.0.0) is released.