Bookstores and record stores usually carry ultra-genre-specific music magazines which cost $5+ and should be treated as books, that is, never thrown out. waxpoetics highlights black music (soul, jazz, R&B, rap, disco, electronic) from ~1960-present. The editor wants to understand the elements that gave rise to hip-hop. I've only read two issues, but I read them cover-to-cover, often with no prior knowledge about the musician or movement. Really good magazine if you're into those genres. Here's a track from Issue 45's cover subject. It's Juan Atkins's "Urban Tropics" from 1991's The Future Sound EP. Minimal Detroit techno with lush synth washes and sneaky melodies.
Don't forget to cop the new Friend Zone EP, either one post back or at this URL, which is The Friend Zone's home on the net.