Being interested in music and have played music since I was in 4th grade, I use photography and music to help each other out. When I'm out and about taking photos, I usually end up with the start to a musical piece playing in my head. After I'm done with the shots I want, I get that melody or tune onto paper. When I'm continuing to write that music at a later time, I go back and look at my photography to give me that extra little 'push'.
I figure at least if the music doesn't come out right. There's always the photos I took. I don't know what I'll do if those don't come out right!