Northwest Harmony Chorus and Columbia River Chorus present its annual Sendoff Show at 2 p.m. May 6 at Vancouver United Church of Christ, 1220 N.E. 68th St., Vancouver. The groups are getting ready to singing four-part a cappella music in the barbershop style at a regional contest in Spokane. Several guest ensembles and competing quartets will also participate in the show, including PDX Voices, the Barbershop Harmony Society and the 2022 Evergreen District Mixed Chorus champions. Admission is free and the evening includes raffle drawings.