librosa : librosa is a python package for music and audio analysis. It provides the building blocks necessary to create music information retrieval systems.
Essentia : Open-source library and tools for audio and music analysis, description and synthesis
ixi software : ixi audio is an experimental project concerned with the creation of digital musical instruments and environments for generative music.
Glicol : make music with code. connect different nodes like a synth, sequencer or sampler.
meSing.js : meSing.js is a JavaScript singing synthesis library that uses the Web Audio API's DSP capabilities in conjunction with the meSpeak.js speech synthesis...
A place to put your favorite song of the moment & hear great music, handpicked every day by friends.