Tim Koch, director of choirs and lecturer in the Coastal Carolina University Department of Music, and Alyssa Cossey, CCU artist-in-residence in choral conducting, direct the final choral production of the year, featuring CCU’s new treble and bass choirs, Calliope Chorus and Bassic Tenacity. The concert includes music from around the world and throughout history, highlighting these two ensembles. Coastal Carolina University, Edwards Recital Hall, EHFA 152, 100 Chanticleer Dr. E. Tuesday, 7:30 p.m. $10 with CCU discounts available. (843) 347-3161, www.coastal.edu