I've recently been quite interested in Mongolian throat singing which I'm not ashamed to say is quite enjoyable whilst doing yoga. It's bizarre and mysterious. I'll post a youtube up later for you.
Boo, I found that it gets me in "The zone" which was rather surprising as I'm usually into house music which isn't that relaxing as all you want to do is get up and cut a rug throwing shapes.
I have been listening to virtually nothing else but Elvis and The Beatles for about 35 years now (95% of the time consistently). And I'm hoping to be still listening to them in another 35 years. Lol