Bartok also did this in his Mikrokosmos - I used them to relearn piano and it was very entertaining to (re-)'learn' piano solely though modernish/Hungarianish m

Bartok also did this in his Mikrokosmos - I used them to relearn piano and it was very entertaining to (re-)'learn' piano solely though modernish/Hungarianish music. I wouldn't personally have wanted it for my first attempt at learning piano, but as someone experienced already, it was pretty great!