A list of open source audio software projects (Apps, Plugins and Libraries). Please contribute more links or open source your own plugins.

VOCANO: A note transcription framework for singing voice in polyphonic music

Omniscient Mozart, being able to transcribe everything in the music, including vocal, drum, chord, beat, instruments, and more.

Fully cross-platform VST2 plugin with a custom editor UI, written in Rust.

Magenta Studio is a collection of music plugins built on Magenta’s open source tools and models

VST 2.4 API implementation in rust. Create plugins or hosts. Previously rust-vst on the RustDSP group.

Audio plugin host

SFZ parser and synth c++ library, providing a JACK standalone client

A collection of free MIDI chords and progressions ready to be used in your DAW, Akai MPC, or Roland MC-707/101

a library for audio and music analysis

Instructional notebooks on music information retrieval.

Python library for audio and music analysis