Rock & Roll Hotel’s upstairs bar was packed with the usual Friday night denizens dancing away to the predictable throbbing drumbeats of the hired DJ. The downstairs bar was the place to be for rock music fans wanting to catch three fine, up-and-coming, local DC bands displaying their original songs and rock musical acumen. Archivists were headlining tonight, but on a good local bill like this, all three bands were given a full chance to provide a set of their original music to fans, friends, and people wanting to have something more than just a DJ’s beat with their buzz. And Archivists, Fluorescent Sense and Southern Problems delivered the goods.