DIVERSITY ON MANY LEVELS
Please don’t say avant garde. The PIVOT concert series is defined as “Our adventures in chamber music,” per the program director Melanie Smith. With it, San Francisco Performances mixes the old with the contemporary and experimental. On Jan. 24 it also entailed solos and duets that were partly or fully improvisational, drawing a sizable audience. Despite resplendent performances by the trio, most of the audience remained gratuitously in the dark. The printed program ended up so scrambled, by the end…