yup I find mine are not crazy about jazz, like some classical and go mad when I play '80's power ballads. I'm pretty sure that some of that is because I sing along to those though.I have a piano right next to my goldfish tank, and I've noticed the fish react differently when I play different music.
So far, they don't like jazz, appreciate slower classical music, and go mad when I play Rachmaninoff.
poor fish. All the gravel vaccing in the world can't help that.