If you're a music writer looking to take your clips to a higher plane, Blender might be a good option for you. Rebecca Onion chats with EIC Craig Marks about what they look for. The music review section is a great place to break into. If you consider yourself a music enthusiast but maybe not so much a hardcore music nerd, there are recurring sections that combine music with profiling like "Weird Band Alert" and "Life After Rock" that can be up your alley.
If you've never written for them, though, forget about pitching a feature. You have to get in on the ground floor with reviews first.
By the by, more info on music writing will be forthcoming, once I can get some people to talk to me. If you're an experienced music writer and have some tips and how-tos, please, by all means, write me.