librosa : librosa is a python package for music and audio analysis. It provides the building blocks necessary to create music information retrieval systems.
ixi software : ixi audio is an experimental project concerned with the creation of digital musical instruments and environments for generative music.
Audiotool : Audiotool is a powerful online music production studio right in your browser.
This is my jam. : A place to put your favorite song of the moment & hear great music, handpicked every day by friends.
Overtone : Overtone is an open source audio environment designed to explore new musical ideas from synthesis and sampling to instrument building, live-coding and...
SoundCloud lets you move music fast & easy. The platform takes the daily hassle out of receiving, sending & distributing music for artists, record labels & other music professionals.