I see a lot of developers using earphones and listening to music while doing their stuff. As someone that prefers relative quiet I have always wondered if this makes them more, or less productive. This article would tend to indicate the latter but of course there is a big difference (generally) between music and noise.
Have you tried grey/pink noise or any of those derivatives?
I find music or even some banal sports talk (almost functioning as noise) to be helpful in allowing me to accomplish tasks that require some thought, but nothing deep. Anything requiring deeper thought, I need quiet.