I enjoy writing to the sound of music especially Souls. It helps me to have a more relaxing vibe and my thoughts tend to flow easier with it in the background. I am now writing to the sound of Mariah Carey on my laptop ( I love her so) and it is soothing for me and I am not even sleepy when I opt to do this! lol.
Music, for me, sets my mood. So when I write, I choose the type of music which is relevant to what I am writing. If I am writing something for the younger generation, I find that putting on young music like disco music helps to put me in the right frame of mind to write for the younger generation.