Mark Hall wrote:

>I am a new user to abc starting work for a project and I was wondering
whether it was possible (and who I needed permission from) to get
underneath the interface of abc applications (e.g. abc2win, abc2midi,
muse, ABC convert-a-matic, tabeldit, ABC Navigator) to develop them
further by improving and adding new features?<

You can get the source code for some of the command line programs. Try
http://abc.sourceforge.net/abcMIDI/ to start with.

The convert-o-matic runs abc2midi and abc2ps for its abc conversions.

Jon