cvmtuning is an utility which creates tuning tables for use with the Colecovision utility library. This can be useful if you want to use a pitch other than the standard A=440 Hz, so you can easily use e.g. the pitch of A at 480 Hz used for organs in Bach's times or the pitch of A at 380 Hz as used in early 18th century England. So far cvmtuning supports equal tuning only.
cvmtuning is covered by the GPL. You can download the source.