[GraemeJ]

As far as your setlist is concerned, get the original files into MSP, by whatever means, and then build your setlist within the application. This will provide you with far more flexibility than an unalterable list of songs.

Incidentally, you have probably confused us by referring to your files as 'music'. They are not music at all, that's staves with bars lines and various dots, representing notes. All you have are files with lyrics and chords as text. You are probably a good candidate for getting your files into Chordpro format (which MSP does know about).