San Diego Chamber Orchestra concert to include music by Mozart, Beethoven, and Brahms March 30, 1973 A free program of music by Mozart, Beethoven, and Brahms will be presented by the San Diego Chamber Orchestra at the University of California, San Diego at 4:30 p.m., Sunday, April 8. The concert, conducted by Glenn Block, will be held in the Recital Hall, Bldg. 409 on the Matthews Campus. The program will include Mozart's "Overture to the Opera, 'Don Giovanni,"' and Brahms' "Serenade No. 1 in D Major, Op. ll." Beethoven's "Piano Concerto No. 3 in C Minor, Op. 37" will feature Mary Alderdice as pianist. A California born composer, Ms. Alderdice attended the Interlochen Arts Academy and the Eastman School of Music. She studied the work of Bach with Rosalyn Tureck and has also been a student of Leon Fleisher. She has been awarded an International Bach Society Fellowship and performed recently at the Marlboro Music Festival. The San Diego Chamber Orchestra is an ensemble dedicated to creating a new system of orchestral performance which acts as an alternative to the more traditional system of performance of most professional and amateur orchestras. To achieve this new system of performance requires the ensemble to be totally free of any divisive elements that would destroy the interpersonal structure and relationships among members and the various sections of the orchestra. Members feel that traditional orchestra has developed such a highly competitive system that these relationships are destroyed. Members of the Chamber Orchestra also perform as principal players and members of the Civic Youth Orchestra, the San Diego Symphony, and the California State University Orchestra. Block, the conductor, is a gifted principal bass player of the San Diego Symphony, a solo bass player for the La Jolla Chamber Orchestra, and a member of several opera orchestras. He is presently a teaching assistant in music at UCSD. (March 30, 1973).