I have been encouraged to share my software in the hope that you may find it useful. (It's FREE at present)
My program HARMONY was originally developed to add chords to melodies, but has been expanded to
display and print scores,
read and write abc file
read and write MIDI files
transpose tunes
create Melodeon and Concertina tablature.
Create new, random tunes (jigs are the best)

I know that there are still a few bugs lurking, but it is quite usable now.

To find a copy to download , click here and go to the Music page.

As an example, I downloaded the MIDI file of 'For Ireland', and used HARMONY to add chords automatically and produce the following abc file - (could be prettier, but it works)

X:1
% MIDI CHAN=1
M:4/4
T:forirlnd
L:1/8
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Q:100
K:CMaj
"C"E E3 "C"E3 C|"G"D6 E2|"F"F4 "C"ED C2|"Am"A,3 G, "Am"A,2 B,2|*
"C"C8|"C"E E3 "C"E3 C|"G"D6 E2|"F"F3 F "C"E2 C2|*
"Am"A,3 G, "Am"A,2 B,2|"C"C6 z2|"F"F3 F "G"F2 G2|"Am"A3 G "G7"G3 F|*
"C"E C3 "C"C3 C|"C"C6 DE|"G"D8|"G"F G3 "Am"A3 G|*
"C"G2 E2 "C"C3 E|"Em"E3 F "C"G C3|"G"B,3 C "G"D3 F|"G"F3 G "Am"A3 A|*
"C"G2 C2 "G"D3 E|"F"F3 F "C"E2 C2|"Am"A,2 B,2- "C"C8 z/2| |*
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