abcmidi contains a collection of command line utilities for working with abc music notation files. - abc2midi converts an abc file into a midi file. - abc2abc transposes the contents of an abc file to another key. - midi2abc converts a midi file into an abc file. - yaps renders the contents of an abc file into common music notation and records it into a PostScript file. - mftext presents a textual representation of a midi file. - midicopy changes the contents of a midi file and records it in a new midi file. - abcmatch searches a database of abc files for certain musical patterns.