Marin Symphony: Magnum Opus, Magnificent Epics

World premiere of Magnum Opus-commissioned The Promise of Time (written by David Carlson specifically for Christine Brewer with libretto by poet Susan Kinsolving); Barber’s Essay for Orchestra No. 2, Opus 17; Wagner’s Siegfried Idyll, plus “Prelude and Liebstod” from Tristan and Isolde. Carlson and Kinsolving join in conversation, pre-concert (6:30-7pm). Marin Center, San Rafael. Tickets $29/$54/$70 (students half price) at 415.499.6800. www.marinsymphony.org