You walk down the dark city streets and find a small staircase with the words Burst Eardrums on the sign above it. Loud music can be heard from up the stairs even as you stand outside. You decide to walk up the stairs and find yourself in an large room, at the far end is a bar, serving okay alcohol and other assorted drinks. On the other side is a stage, a band stands on stage playing, their music is loud, almost too loud but you find a way to deal with it. The stage has everything it could need to facilitate most any kind of band, with graffiti lining the walls behind the band. The crowd in front of the band is going crazy, a mass of people all moving to the music. You think you could stay here for a while.
Basically this RP has this bar as the central hub, you can go places other than the bar though most of the action takes place there. As well people can be band members or simply be patrons, though doing full bands will probably require more than one user to hook up to make up the band, that shouldn't be much of a problem but it will take some pre-planning.