... and I have taken formal private piano lessons from the age of 5-18. ...minimum skill level is Clementi's Sonatinas and Bach's 2-Part Inventions. The problem is that I'm not sure how difficult either of those are to play, so I'm not sure which pieces I will be able to play that are still in my repertoire. They sound fairly easy when I listen to them, but I would like to know your opinions on their difficulty level.