“If you have to ask what yazz is, you’ll never know,” Louis Armstrong once said … not quite. Still, that playful spirit captures the essence of the Vermont Yazz Fest, which makes its Addison County debut this summer on Saturday, Aug. 30, from 2 to 6 p.m. at the Historic Ferrisburgh Town Offices and Community Center — the 150-year-old, big white building on Route 7 that for many years was a Grange Hall. Formerly known as BTV Yazz Fest, the event originated in Burlington as a celebration of experimental, imp … (read more)