Mengelberg, Willem. (1871–1951) Signed ProgramSigned program from a orchestral concert that the great Dutch conductor directed at the Augusteo, Accademia di S. Cecilia, in Rome, April 18, 1912. Bifolium. Signature in ink sideways to the right side of the first page. 9. 75 x 6. 75 inches (25 x 17 cm). Mengelberg's printed name is underlined in red crayon; slight foxing; else in very good condition. "Mengelberg was a virtuoso conductor whose desire to enhance the musics poetic content led to