Java Music Specification Language

Java Music Specification Language (JMSL) is a framework for computer music composition, interactive performance, and intelligent instrument design.
 

JMSL's features include:

• Java core: build stand-alone applications and/or applets that run in web browsers
• Hierarchical scheduler
• Powerful, flexible core classes that can be put in a hierarchy and launched
• Very tight integration with JSyn
• MIDI capable
• Algorithmic toolbox

http://www.algomusic.com