If they are MIDI tracks, it's easy. Export to a sequencer, DAW or Real Tracks and transpose them +12 semitones.

If they are RTs, someone else needs to chime in. So far my experiments in that have resulted in "munchkinization". If there is a good way, I'd like the answer too!

Notes ♫

Coming soon from Norton Music:
2 new style disks
Gospel's Greatest Fake Disk
Real Rock Fake Disk
Beatles Fake Disk
and hopefully an updated Christmas Fake Disk
http://www.nortonmusic.com