- A82, A6B, A6C -

OC Sound Chorus Entertaining Orange County Audiences Since 1969 We welcome and extend the hand of harmony to all singers who want to make music together where every unique voice matters. OC Sound Chorus celebrates the art of barbershop and a cappella music through education performance and competition thereby inspiring and empowering voices to joyfully harmonize the world. OC Sound Chorus has a long vibrant history of entertaining audiences throughout Orange County. Originally chartered in 1969 as Mission Viejo Chorus we are part of Sweet Adelines International worldwide nonprofit organization.