ALS-Dimitri Mitropoulos, ALS-Bruno Zirato, ALS-Ralph F. Colin, ALS-Boris Sokoloff, ALS-Hiller Innes, ALS-Daniel Rybb, ALS-David Kates. Sibelius Memorial Concert program; Philharmonic sponsorship of Harry T. Burleigh Music Festival to give tribute to the elderly composer; Letter to Zirato explaining that Burleigh, a "great Negro composer and arranger" was confined to a sanitarium; Alleged improper advertisment of National Negro Opera Fondation using members of the Philharmonic.