. . "Bass-baritone Thomas Quasthoff was orginally scheduled to perform Mahler's \"Kindertotenlieder\" on this concert, but withdrew due to a bronchial infection; he was replaced by Gil Shaham performing the Mozart Violin Concerto No. 5." . "The Philadelphia Orchestra" . . . . . "symphony orchestra performance" . "2007-01-23T20:00:00"^^ . . .