Joanna de Keyser, 3, Holly wood ‘cels’ who was presented im Berkeles recent by Amritaon Concert Foundatia, won the Sam Francisco Symphony Founda on Auditions and will perform with that orchestra at the Foun dation members’ concert tonight in War Memorial Opera Howse Misa de Keyser and Renee Chevalier San Francisco paar ist, were fmnaints. * Discover matinee,” spon sored by Youth Par Service will present five Bay Area perform ers at a Sunday Salon concert Sunday at 2 pm in the Crystal Ballroom, Marines’ Memoral Bidg San Francisco They are soprano [Jane Trethowan Ray sariiones Raymond Fung and Walter Hinton, folk singers Rich ard Jaqua and Victor Bacigalupi Swanne Bloch wil give an unusual concert of folk and art songs of earler times Saturday 218 pm. m Berkeley Little Sweater Program Will include music for lute, for recorders, for originals, and songs to the late Tickets at Sherman Clay, Oak land, Campus Records and ASUC box office, Berkeley, and after 7pm. at Litue Theater. The Devoiee Camerata Sing ers, conducted by Alden Gi christ, present a concert of sa cred music Sunday at 7.8 pm in Canary Presbyterian Church, Sam Franciss, admession, free. Program includes Bach's “Jens, meine Freud Pachelbel's “Magnificat” and coins of Brahms and Schubert, as it was said at Oakland Sher man Clay at midweek that Spring Opera singles would be available there next Monday. rather than a week earlier as had been announced from San Francesco Operas. from Apri l through June 8 are “Tales of Hoffmann, * “Rigoletto,” * Magic Fire,” Don Pas quale,” “Madame Butterfly.” double bill of “Bluebeard’s Cas ue” and “Spanish Hour.” 6Oo 0 Tickets for the Brigham Young University Chorus and Orchestra, totaling 408 musi cims, at Berkeley Community Theater April 11, are available from Don C. Wood, 233 Swart St. Getnevey, Serge Laupes, 1730 24th Ave, San Francisco, and Whitney ‘Groo, 212, Wild wood Drive, South San Fran cisco, and also at Sherman Clay in Oakland and Lampard Otter Inc, Berkeley The big group will perform two big works— Bach's Magnificat and Walton's “Belshazzar's Feast.”—C. G.