Can animals appreciate music?

It seems that one of my cat’s always chooses to relax with his ears pointed at the speaker when Chopin is on, which got me thinking, do animals have the capacity to appreciate music, or even organize sound vs. noise?

I have played harsh noise music, and another one of our cats, after the initial response of “gah wtf”, tend to relax in a similar method to the first, pointing his ears at the speaker, while the others get away as far as possible. Is it possible that cats might actually have musical preferences?

What about other animals? For example, frogs, who don’t have “ears” in the same way we do, and instead have a membrane type thing on the sides of their heads?

Maybe we have found our generations next musical critics, they don’t base their experience on how good the band’s last album was :P