Thanks, all!
When I was studying, I really didn't listen to a lot of music. Music seems to hit a part of my brain that disallows me concentration on much else. Consequently, when I was really trying to build logical code, no music was the best option, unfortunately.
Now, however, whatever I am listening to sounds better . Less stress, maybe. With really good jazz, it's almost as if I'm just gulping down the tunes, like a man left hungry for weeks when he finally emerges from the desert to see he is in Vegas. gulp, grin, gulp. The human brain is pretty amszing.
More music, please! Damn this feels good!