Hotel Pennsylvania during the three years of Miller's great popularity as a major bandleader of the Swing Era. Glenn Miller and his Glenn Miller Orchestra broadcast multiple live radio performances from the Café; some were recorded by RCA Victor. Gray, Shaw's principal orchestrator from 1937–39, was immediately hired by Miller as a staff arranger when Shaw deserted his band; it was during Miller's 1940 engagement at the hotel that Gray wrote the popular instrumental tune that immortalized the Hotel's telephone number. The hotel's telephone number appears in the title of one of his best-known songs, "Pennsylvania 6-5000". Les Brown's band, with its
Glenn Miller discography performed, recorded, and broadcast on the "I Sustain the Wings" radio program, Program No.15, on May 5, 1944 and on November 10, 1945. Larry O'Brien and the Glenn Miller Orchestra recorded the song on the 2006 album "Steppin' Out". "I Sustain the Wings" was composed by Glenn Miller, Chummy MacGregor, Norman Leyden and Bill Meyers. This was the theme music for the radio program that was broadcast weekly on Saturday on NBC from June 1943 to June 10, 1944 by the Army Air Force Band under the direction of Captain Glenn Miller. The radio show was on CBS. Miller was