If were going to listen to music whilst shaving, it would definitely be some jazz! I'm not a huge jazz aficionado, but I like Dave Brubeck, John Coltrane, Miles Davis, and I'm going to be listening to some Paul Desmond now, too. I really like the '50s/early '60s style jazz, with that smooth be-bop type bounce to it.The entire Dave Brubeck Quartet's Time Out album is perfect for shaving.
Ever seen the movie Rushmore? That's Take Ten by Paul Desmond featuring Jim Hall playing in the background, the barbershop scene.
I've heard my oldest daughter talk about Rushmore, but I've never seen it. I'll look for it sometime.