JSyn - modular synthesis API for Java.
JMSL - Java Music Specification Language
PortAudio - cross platform audio I/O API for 'C' is the home for various audio and music projects by Phil Burk and Mobileer Inc.

Latest News

1/1/15 JSyn V16.7.4 Released as open source under the Apache Source License V2! JSyn source is now available on GitHub. JSyn was closed source since its beginnings in 1996.