From the phrasing of your question, I thought you were asking a different question. If you'd said "listening to", I'd have assumed your actual question, but since you said "hearing" instead I took that as an intentional effort to imply a different question. One of "While you're coding, what is the auditory portion of your brain processing?" Are you hearing yourself think? Do you hear the sound of your typing? The people around you talking? Or do are you concentrating so deeply that you block those out?
Today I listened to Beats Antique's new Album: Elektrafone [1] and Mexicans With Guns.
late 90's early 00's -- nsync, bsb, nelly, eminem, britney spears, mandy moore -- classic. I used to listen to just about anything...just randomly started listening to this old stuff recently...nostalgia is a crazy thing. I was about 10 when these groups were popular. Now I mostly listen to 90s rock and classic rock, and some newer bands like Shinedown
I've been listening to the soundtracks of shows and movies remotely related to coding. e.g Tron and Battlestar Galactica.