The six members of Otrov are rising stars of tamburitza, traditional Balkan string band music. Cousins David and Peter Kosovec are from a deeply musical Croatian-American family in Detroit, while Marko Dreher is from a family of Croatian musicians and has degrees from Oberlin Conservatory and The Cleveland Institute of Music. Pittsburgh native John Huckle, who has a serious jazz background, joined the Duquesne Junior Tamburitzans at age 16, and later both played and danced with the famed Tamburitzans. Kruno Spisic studied jazz guitar at Duquesne; his interest in the gypsy jazz idiom adds a special element to Otrov's sound. Bob Sestili rounds out the group.

Tamburitza music has flourished in ethnic communities across the Upper Midwest where Eastern European immigrants flocked to work in the region's factories and mines but until recently has had little exposure beyond these communities. The virtuoso musicians of Otrov are helping to change that.

SCHEDULE: Saturday, Boarding House Park, noon, St. Anne's, 2 p.m.; Sunday, JFK Plaza, 2 p.m., Boarding House Park, 4 p.m.,