SATB a cappella with solo, optional shaker and djembe.
Pepper Choplin is widely acclaimed for his unique "a cappella" scripture settings, filled with a rhythmic, energetic spiritual quality. "Upon This Rock" is a compelling interpretation of Matthew 16:13–20, a celebration of church unity and the church's challenge to be in the 21st century. African-flavored syncopation, call and response between choir and solos, and optional percussion add to the fun for singer and listener alike.