“What would Steve do?” John Colgan-Davis asks himself. “How would he handle this?” Even after the passing of Dukes of Destiny’s founder Steve Brown, his presence is still felt. Under Colgan-Davis, the Dukes are still a rollicking big blues band — “We have seven voices all capable of singing lead and laying on harmonies,” he notes — but their repertoire is evolving. Where they once specialized in semi-obscure covers, they are now doing originals. And the covers, well, “They are the obvious ones, like ‘Temptation’ — but we have Dukified them.”
Sat., July 28, 9 p.m., $10, World Café Live, 3025 Walnut St., 215-222-1400, worldcafelive.com.