VictoryRose, I think sigur ros would go over well, slow dreamy. I've used a lot of indie music, Beach House, Air, anything with female vocals. House, post-rock, folk, disco, played metal for a guy who walked in with a Slayer shirt, classical, jazz, sometimes I have clients pick music, sometimes I play albums for them when I know what they like, think I'm gonna get an iPad so I can play music on outcalls too, because I'm always disappointed when I turn up to someone's home and there's no music!!!
Yeah, I've had clients ask me to turn it off before. Okay, fine.
Personally though, being able to listen to music while f*king is one of the perks of f*king. I had a bf years ago who used to sing lyrics to me instead of dirty talk. It was hot.