I find myself easily distracted when listening to rainy music, it just makes me feel sleepy and want to climb to my bed. What I listen to is instrumental songs like yiruma, joe hisashi and ryuichi sakamoto. Mostly Asian composers but their music is certainly soothing and makes it easier to clear your mind and focus on the task ahead. . You can check their music @ Youtube. I like the other two sites mentioned but I think im not a rain guy