I know as top, I like to have music available. I think variety is important as long as it maintains a good “energy” level. That does NOT always mean a rapid beat. You do need to quieter elements splattered in there on occasion.
I tend toward symphonic/progressive metal with a sprinkling of industrial/house. This would be great for rough play, impact play, predicament play, and a good variety of rope play, etc. where you want to maintain energy levels
If you wanted to go to a more sensual feel, you could go more acoustic or new age for senual play, other types of rope play and environments where you are enhancing the more languid aspects to the scene you are creating.