I pick my playlist based on how the music inspires me with the feeling I'm going for. Since everyone has their own rate of what it takes to cum.  

The chamber brothers

Another one of my favorites😁

I'm with you on that one !

Or Pink Floyd!

Please! Share your playlist.  
Is it just a gut feeling of what the client mite like or is it base on your feeling's at the time.
Or a motivation inspired list.

I don't know about BJs in particular, but a song I've had sex to more than once is Miracles by Jefferson Starship. It has that rising and falling action, and a very good climax. A lot of suggestive noises, too.

Great Led Zepplin classic .. builds to a great climax

So long as it is not something I can't stand, she can play what she wants.  Can't say that I've ever objected to anything badly enough to ask her to change it.

But realize this is from a guy (me) who once sung "The Rainbow Connection" with the two providers he was with. I think I was singing in my best Kermit imitation. But it was well AFTER the BJ.  If a provider had that song on her playlist, I'd probably burst out laughing and that might spoil the moment.  

...as she was giving me a BBBJ. This song  http://youtu.be/DqpFMqfeltE  was playing on my playlist and just as the song reached about the 2:34 mark... it was so hot to gaze into her eyes as I blew into her mouth. Hot as Fuck!!

http://www.youtube.com/watch?v=etDhW2GZzqw

I'm concentrating on something else. If she has a preference that enhances her enjoyment, then play it.

I totally want to see this

They have a tune called "Down to the Bone" seems appropriate.