studio is a set of music applications built on the PyDevices audio and MIDI stack, on the desktop and on boards: a sound module that plays whatever a DAW or keyboard sends it, Ostinato, a pattern sequencer and song editor in your browser, and Vamp, which plays Ostinato's songs on a board.

Install

studio is used from a clone, beside the libraries it builds on:

git clone https://github.com/PyDevices/studio
git clone https://github.com/PyDevices/audioinstruments
git clone https://github.com/PyDevices/audioeffects
git clone https://github.com/PyDevices/audiodsp
pip install ./audiodsp numpy
pip install --no-deps ./audioinstruments ./audioeffects/lib/audioeffects

Try it

Render a MIDI file through the sound module to a WAV, with no MIDI hardware. The sound comes from a General MIDI SoundFont (.sf2) that you supply, such as GeneralUser GS:

cd studio
python tools/render_mid.py tests/midi/musicbox1_spooky_waltz.mid take.wav --bank GeneralUser-GS.sf2 --path lib

It writes take.wav, 53 seconds of celesta, and prints what it measured:

notes 261
played 261
held 0
sounding 0
song 53.310
render 0.947
reverb 0
chorus 0
soundmodule: cpython 3.12.3 (linux): 0 bytes of MIDI, 0 Identity Requests answered, render behind by at most 0 ms while playing (0 ms before the first note)
  channel  1:  157 notes, bank 0:0 program 8, Celesta
  channel  2:   56 notes, bank 0:0 program 8, Celesta
  channel  3:   32 notes, bank 0:0 program 8, Celesta
  channel 16:   16 notes, bank 0:0 program 8, Celesta

played equals notes when every note sounded. The render and interpreter lines are yours to differ on.

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