[Mahler, Gustav. (1860–1911] Walter, Bruno. (1876–1962) Mahler Symphony no. 4 - Autograph Musical Quotation with PhotographAutograph musical quotation from the great German conductor closely associated with Mahler, whose music he helped establish in the repertory. Walter has penned the theme from the first movement of Mahler's Symphony no. 4 to the head of a program sheet from the Philadelphia Orchestra's first ever performance of the work, which Walter conducted with soprano Desi Halban, in January, 1946. Walter has penned a note around the quotation, inscribing "Dear