"OMG music" doesn't have a good anagram; I checked.
OMG so much music! XPN just launched XPoNential Music on demand. It has THREE live music feeds: a feed of XPN (adult album alternative), a feed of what used to be Y100/y100rocks.com (alt rock), and another one called XPoNential Radio that I haven't yet figured out. Also, archived concerts and podcasts, and (at least for the latter feed) real-time playlists!
Seriously, check this out; it's amazing, and you'll agree if your tastes are anything like mine.