Sex Music: http://xmusic.fm/
Not really as raunchy as you might think. Great blog to follow if you are a music lover period whether or not you have any interest in sex music.
http://thiscitycalledmusic.tumblr.com/
His explorations and reviews of music old and new. Just love the diversity and commentary as well as posts of songs. I don't always agree, but many times I do. Just really wonderful to follow him. He has another blog, not music, where he posts really great photography. Follow here: http://thiscitycalledearth.tumblr.com/
http://postpunk.tumblr.com/
Almost forgot about PostPunk. The music of my youth!!! Another great follow.