Common Music (CM) is a real-time music composition system implemented in JUCE/C++ and Scheme. It generates musical output via MIDI, OSC, CLM, FOMUS and CSOUND. Its user application is called GRACE (Graphical Real-time Algorithmic Composition Environment)
Mi_D is a multi-platform, multi-driver, and multi-language shared
library that offers clients a simple unified, yet unique set of
MIDI services that are not commonly found in existing driver
interfaces.