SuperCollider is an environment and programming language for real time audio synthesis and algorithmic composition. It provides an interpreted object-oriented language which functions as a network client to a state of the art, realtime sound synthesis server.
These might be useful starting points on getting help with SuperCollider:
SuperCollider is free software published under the GPL: Licensing.
SuperCollider help docs are published under the Creative Commons CC-BY-SA-3 license: HelpDocsLicensing.