I knew about canyon.mid and passport.mid back in the day, but was unaware there were three new ones. Man, let no one say Microsoft didn't have at least a little taste in music. And that MIDI's still alive and well.
But I used to have some kind of Casio huge musical keyboard with two jazzy demo songs that YouTube doesn't have. They've got demo songs for other Casios, just not the one I had. What's up with that? Demo and comes-with-it music should be freely available to all!