Producer/mixologist Gramatik and ghettotechnician Minnesota are coming to Chicago's Riviera Theater February 23 for a bass heavy show. Since being signed to Pretty Lights Music, Gramatik has received wide spread recognition across the US for his soulful, hip-hop fueled beats, as well as his use of a live guitarist - allowing him to mix live instrumentals and create loops on the fly. In support is DJ Minnesota (who is sure to keep the floor shakin') and Manic Focus.