I like to listen to music or even NPR when I am working, however, I agree with this research, that all work doesn’t require the same kind of attention. Here are some of the research findings (taken from the article):

– When the task is clearly defined and is repetitive in nature, the research seems to suggest that music is definitely useful.
–In a noisy workplace like an open office, music can improve productivity.
–Music demands too much of your attention–even when the sounds are subtle–to be listened to when you are trying to learn or analyze new information.
–music with especially low-lows or especially high-highs should be avoided.
–ince listening to words activates the language center of your brain, trying to engage in other language related tasks (like writing) would be akin to trying to hold a conversation while another person talks over you… while also strumming a guitar.

Here are a couple of cool sites for white noise and a rainy mood:
SimplyNoise: Playing nothing but a low pitch white noise in the background is amazing for certain productive scenarios, at least for me. I find this can really get me in the zone if there is something outside that is intruding (like construction work).

RainyMood: Work like it’s drizzling outside even when it’s 80 degrees and the sun is shining! This plays a loop of a mild storm, turn on a fireplace video and you can get seriously cozy.

from http://goo.gl/5GtplM