Is it allowed to publicize one's own products here (shareware, of course) where it is likely to be of use to members?
My main program generates (calculates) chord symbols to accompany tunes.
It reads (most) abc & (simple) MIDI, writes MIDI and abc, prints score with words and chords
Also transposes, prints melodeon and concertina tablature (and understands the difference between major/minor and modal tunes).