Just went through the video. Saw some interesting little tib bits of info:
-They have a large amount of genres. It's even broken down into genres like Folk Rock.
-In the video, it showed 2137 already available songs AND 2559 in the language section, which means there are another 422 songs in languages other than english
...h/o, g2g. i'll update when i get back. i have info on all the bands nd songs shown. i will list them shortly.