Artists engage in self-aggrandizement out of necessity. If they aren't given their chance to be a focal point at the podium, they're left to shout their names from crowd or sometimes from outside the venue doors. As the adage goes, they must "toot their own horns" until they build a large enough band to play the instruments for them. Right now, Nashville's building a band to support the artists and this past Wednesday's Hip-Hop showcase, hosted by our friends DJ Crisis and Dee Goodz and sponsored by Rocksmith, was one more effort for the band to come together and jam.