I have studied the abc synchronised words spec (w: lines) and should be able to incorporate this into HARMONY quite easily.

Harmony already reads and writes multivoice files (V:)

I did already have the text of the abc draft spec, but had overlooked parts of it.

I could also add K:, because Harmony already handles Bass and Treble clefs.

Reggie: You can start with the simpler stuff and work up from there, but there really is no substitute. Musical notation has evolved over 1000 years or more, to try and capture the essence of the live performance, but it is still a compromise. All performances require an element of interpretation, the written score is just the bare bones, an aid to memory.

There are many good books on musical theory for beginners, and it is well worth learning the fundamentals. Or you could find a friendly trained musician to teach you just as much as you need to know - is it for an instrument you play or want to play? Which one?