Celebrate youth, exuberance and the future of choral music as Robert Geary and his professional Volti singers host 4 high school choirs (Acalanes HS, Lafayette California; Head-Royce School, Oakland; Piedmont East Bay Children’s Choir, and San Francisco School of the Arts) in a concert featuring Volti premiering “Songs of Lowly Life” by Stacy Garrop, and the massed high school choirs singing Garrop’s “Sonnets of Beauty and Music” and more.  Garrop, who was composer in residence for the Choral Institute intensive weekend multi-choir retreat earlier this fall, appears for a Q&A courtesy of Meet the Composer.