70th Barbershop Harmony Parade to showcase key ingredients of a strong quartet by Kevin C. Vestal on August 24, 2018 share Members of the male quartet group The Praetzel Brothers Aaron Praetzel, left, Brian Praetzel, Gray Cullen and Sean Praetzel perform "What a Day for a Daydream" during the Barbershop Harmony Parade on Sunday, August 20,