My dog shows interest (head cocking, pressing nose to sound bar) in classical music, opera, piano and guitar playing, and a song called 'perfect ruin' by Kwabs 
However his strongest reaction is to the theme tunes of American Dad and Family Guy. He puts his head back and howls like a wolf! I think he enjoys it but it's hard to know if he is actually distressed by it? He runs up to the tv when it comes on though.
What music does your dog enjoy?