When I'm baking, I like loud music. I'll crank Bon Jovi or Queen, sometimes some metal. But when I decorate, I like melo. I have a podcast called iCoffeCafe from iTunes. It's free and it's only one track, about an hour of music and it's mellow, kind of jazzy but not so much that it makes me sleepy.
Oh, I also love to do either with re-runs of House on in the background. Gotta love House.