Jason Kao Hwang’s quartet, EDGE, draws from free and traditional jazz, East Asian influences and Hwang’s upbringing as a classically trained violinist. Here’s a preview of the band’s Sunday evening performance at Bohemian Caverns.

Ron Carter>> Philly based saxophonist Elliot Levin brings his experimental sounds to the Bossa Bistro & Lounge tonight at 10 p.m. Call 202-667-0088 for cover information. 10 p.m. >> The Vocal Workshop is an 8-week performance course designed by local musicians Chris Grasso and Paul Pieper that culminates with a live performance. Catch the latest batch of students and learn more about the program tomorrow night at Twins Jazz. Call 202-234-0072 for set time…