Jazz Band Masterclass.

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Twins Jazz, 1344 U St., NW, Washington DC

Jeff Antoniuk's Jazz Band Masterclasses occasionally perform at Twins and other venues around DC. This is one of the semi-annual gigs at Twins Jazz. Each of the three bands will play a 45-minute set beginning at 7:30, 8:30, and 9:30. Tickets are $15. twinsjazz.com