his `` magic flute `` overture was lively , though the orchestra turned mushy more than once. ; midsummer mozart festival ; in san francisco ; tonight : 7 : 30 , film `` amadeus , '' palace of fine arts ; friday : 8 p.m. , `` the marriage of figaro '' performed by pocket opera , palace of fine arts ; saturday : all- mozart chamber program by conservatory students , university of california , san francisco ; tickets : -lrb- 415 -rrb- 781-5932