[l5870uoo9y]

Goldberg variations comes to mind. If you search for it on your music service you will without a doubt be presented with Glenn Gould famous interpretation from 1955 where he eccentrically hums you through. You can then listen other renditions and you will notice they are quite different (foreinstance Fazil Say or Lang Lang)

[davepeck]

I happened to be listening to Fazil Say's variations when I read your comment. I can't recommend them highly enough; they're a delight.