All my remarks are about the downloadable version.

Snuffy, I have a feeling that the 3 midi files aren't actually linked to any DT entries.

MMario, yes that's what I gathered, in fact each note is sent to QuickTime as a separate MIDI event not as a complete file, it has to do that so the playback is synchronised with the moving blue note.

It might be useful to try and find out what percentage of QT6 users can actually get playback to work.

My only other gripe is that there are actually two alpahabetic sequences of song titles, so if you're browsing rather than searching, yo have to make sure that you've gone through each section.