So far OSX version, Linux version comingLNX_Studio is a DAW created in the SuperCollider language. It has a powerful set of tools for creating music, all of which can be networked. Co-location gigs or real-time collaborations don't have to be in the same room.
In LNX_Studio you will find a library full of Drum Machines for creating beats, Synthesisers for making melodies, Effects for processing sounds and MIDI modules for controlling internal or external equipment.
http://lnxstudio.sourceforge.net/