XPMCK is a music (expressed in MML) compiler kit targeted towards various video game systems. It currently supports the following systems:

* Nintendo Gameboy / Gameboy Color
* SEGA Master System
* SEGA Game Gear
* SEGA Genesis

Besides the compiler and its source code, the kit includes playback libraries for all supported systems, as well as examples and brief documentation.

Changes:

Added support for the @te and @ve command to the Gameboy playback library.
Fixed some bugs in the Gameboy playback library.
Fixed a bug in the Genesis playback library.
Fixed the include path handling so that it is relative to the path of the includer (unless an absolute path is specified).
Unused effects are now automatically removed by the compiler.
Updated the manual.

http://badc0de.jiggawatt.org/