A polyrhythmic metronome with CLI and Jack audio server connectivity.

Install polymetro using pip:

pip install polymetro

To use polymetro, follow the format:

polymetro -p JACK_MIDI_PORT_NAME -t TEMPO -d <int> [int int ...]

• -p JACK_MIDI_PORT_NAME: The port name as shown by jack_lsp. For example: fluidsynth:midi_00.
• -t TEMPO: Set the tempo in measures per minute (main beat tempo).
• -d: Beat subdivisions. Can be one or multiple values, such as -d 4 for 4 beats per measure. If multiple values are given, like -d 3 4, a 3-against-4 polyrhythm will be generated. In this scenario, the metronome will play two separate MIDI tracks, each with its own output, besides the main MIDI output.

To generate a 3-against-4 polyrhythm at a measure tempo of 30 per minute on the port fluidsynth:midi_00, you'd run:

polymetro -p fluidsynth:midi_00 -t 30 -d 3 4

Feel free to open issues or pull requests if you have suggestions, bug reports, or contributions. Your feedback is highly appreciated!

This project is licensed under the terms of the LICENSE included in this repository. You can view the full license text by clicking here.