This presented a bit of a challenge, of course, since the music box has a two-octave diatonic range. That is to say: it only plays natural notes (e.g. the white keys on a piano). Despite this limitation, though, it would seem that the attempted turned out rather well!
Joe Garrity of the Origin Museum alerted me to this: http://www.youtube.com/watch?v=xx-10sI33lk&fs=1&hl=en_US I could say more for the sound quality, but that right there is a pretty epic take on the title screen track from Ultima 5.