Harbor Lawn at Waterfront Park
Free; 6 p.m.
Sonos, a six-person a cappella group out of L.A., will open up WFPK’s Waterfront Wednesday with an infectious brand of a cappella panache. Using beat boxing and avoiding the ubiquitous “dow” sound other groups use to imitate musical instruments, Sonos also touts a playlist of unconventional tunes that includes Radiohead’s “Everything In Its Right Place,” Imogen Heap’s “Come Here Boy” and Bon Iver’s “Stacks.” Thanks to a resurgence of a cappella on college campuses and shows like “Glee,” it seems chorale is actually cool again. The other two acts at tonight’s free concert are Joshua James and Carney, both up-and-coming performers who could very well be household names this time next year. —Rosie Haney