VoCALnation

Locations and times vary. Visit vocal-nation.com for details. In this first year of this a cappella blowout, ensembles from around the country will invade several venues around the city. Two showcases at Kenny's Castaways (Fri 25) and the French Institute (Sat 26) feature top unaccompanied groups from around the country. Meanwhile, workshops on such arts as beat-boxing and harmonizing fill Saturday's schedule.