My teacher wants me to work on 20th century other than Khachaturian and post-experimental music... So he handed me these pieces to work on, and Copland's Cat and Mouse... There any good recordings? The cat and mouse, I've found crappy Youtube videos of... and the six short pieces (I THINK... Op. 34? - I don't have it here, I accidentally left it in the studio on Monday, and it's locked up until after New Years)... I can't find at all. Any help?