This is a keeper post. Lots of recommendations to try. For me, a high quality recording of less familiar or unfamiliar music is prefered over a lousey recording of old favorite songs.
Here are a couple more good stereo testers. Kraftwerk can wear thin after a bit, but wow, some of their sounds fly all over the room.
Ive only heard streamed version, but listening to Roger Waters Amused to Death is like an upgrade from $1k to $5k speakers or something like that. Makes me wonder why all recordings arent this good.

