Since I've learned to play guitar (and studied music theory) my mind has opened up to the possibilities of learning and I feel like a smarter and sharper person. I can't say with any scientific evidence how music has changed my mind but I'm going to agree with that general statement.
Additionally, I find that when programming a short musical break will rejuvenate my mind and get me right back into the flow of code.
I find I code more quickly and elegantly when I'm listening to music - especially ambient music without a lot of sharp edges that throw me out of flow state.
Additionally, I find that when programming a short musical break will rejuvenate my mind and get me right back into the flow of code.