I'm one who doesn't ride with headphones/music. I do most of my riding on quiet, narrow country roads and it's hard to hear a car coming up until they're right on top of you. Same for cyclists. They're usually good to let me know if they're passing, but I almost never hear them until the very last second. I'm concerned that I'll be too cut off from what's going on around me if I ride while listening to music, much as I'd love to do it.

JasCali... I was an opera major in college, but I don't listen to it much now. I'll have to check out Katherine Jenkins. Kiri Te Kanawa was always my favorite soprano for true opera... so pure and beautiful and not too heavy. And I love Elly Ameling for art songs and lieder.