Son Step is a group that pushes the expectations of convention, with a sound that is a refined, tight unit. In this way, the songs offer a glimpse of cleansing clarity, while simultaneously offering a new perspective, blending the unfamiliar within a stable setting. The instrumental energy is fluid, undeniably dynamic, and measured to precision. With a freshly cooked batch of sonic treats coming out of the oven this evening at Johnny Brenda’s, the band expands the musical palette. Marrying sleek R&B while inserting snippets of rock, Steven A. Clark, whoreleased The Lonely Roller a couple months back, bridges the divide between the persistent, percussion-filled, funky, free-jazz, wide-reaching, universal sound of Sinkane, a.k.a. Ahmed Gallab. Johnny Brenda’s, 1201 N. Frankford Ave., 8pm, $12, 21+ – Michael Colavita