I like music. No where near as much as I like books, but it's still pretty high up the 'this makes me feel good' ranks. That said there are some great boogie tracks out this season making me want to go out dancing rather than sit at home writing.
My solution? Do both.
Na, na, na, na, na, na...once upon a time, in a land far, far away...gimmie, gimmie that base.
Ahem. *serious face* Music is inspirational. It can make you laugh, cry, or feel stupidly happy. If you're having a great day and need to write a death scene, or concoct a twisted tale of darkness, it can be somewhat difficult to get the words on the page to behave. Music can help create an atmosphere and nudge me into the boundaries of my emotional zones. Then I can draw myself closer toward 'that place' in my imagination, rather than forcing my mind to switch from happy to sad.
I don't know if that works for anyone else, but it's a winner for me.