My cat hated music.... mainly because she liked to sleep inside the piano when I wasnt there to shoo her, and would get a nasty surprise if I started playing without checking first... on the other hand, my turtle LOVES Bach, Haydn, Scarlatti and Mozart. Whenever I practice those she pops her head out of the water and becomes real active (most of the day she just lies there). When I play Prokovieff, she hides under a rock in her shell.