More details have leaked on the upcoming Rock Band Network, which will allow independent bands to submit their own music to the game a la iTunes, which should expand the amount of downloadable content by, like, a bajillion.

The menu seems to be very helpful in cutting through the mess if there is a massive collection, with a “Top 10,” “Harmonix’s Picks” and others. Players will also be able to browse music by artist (alphabetically), or by an expansive amount of sub-genres, from speed metal and rockabilly.

Prices will be set by the artist in the $1 – $3 range, with free one-minute demos available. See our previous story to see how the revenue sharing will break down.