abc2cvm will create Colecovision music data for use with the Colecovision utility library from .abc music files. There is a tutorial showing how to use it. abc2cvm is covered by the GPL.

Discussion: http://www.atariage.com/forums/topic/151984-abc2cvm-010-released-bringing-even-more-music-to-the-cv/

http://colecovision.eu/ColecoVision/development/abc2cvm.shtml