The remarkably innovative, idiosyncratic and delightful ADESSO is, to begin with, perhaps the only chamber music ensemble whose percussionists outnumber the rest of the musicians. Beyond that, it is an extraordinary compilation of talent that was formed in 1997 by members of the San Francisco Opera Orchestra in order to stretch artistically, perform during the opera off-season and experiment with presentations of musical pieces they themselves find most interesting and challenging. In the process, they bring an unusually large measure of pure joy to classical performances. Much of their repertoire has been composed or arranged by members or friends and family of Adesso and the result is a contemporary energy that ripples through their work with quite a jazzy, upbeat feel. Their program includes the World Premiere of Songs for Jolie by Catherine Seidel, a newly discovered percussion sextet by John Cage, and works by Michael Daugherty, Bruce Stark, Michael Gandolfi, Roberto Vizcaino, Rick Kvistad, Roger Kellaway and Nigel Westlake.