for me, I like to listen to music usually but when I'm really into an animation, I don't notice it anymore... so if it's stop playing, I don't get up to change it....
but I hate to listen to the radio, there will always be some stuff that will annoyed me to listen to and I will have to get up!
I agree about the classical, I love it. I also love score of movies like james horner or john williams which could be dangerous because it can make you think of the movie and influence your animation! lol
