Andrew von Oeyen, a highly accomplished young pianist, performed the piano solo in Rhapsody in Blue with the gusto and verve it deserves. Perhaps Gershwin’s most abstract composition, the concerto distills a kaleidoscope of sounds, whose origins were clearly distinguished in the previous pieces on the program, into a sinuous whole. Opening with the signature glissando clarinet, clean precise piano sounds were offset by the smooth orchestral tones of the San Francisco Symphony.