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 ten songs with the Clark Randall orchestra in March 1935. "Icky Morgan" was released as a Brunswick 10 inch 78 single in 1935 as Brunswick 7415 backed with "Troublesome Trumpet". The song appears on the 2001 compilation album "Bob Crosby and His Orchestra: And Then Some, Parts 1 and 2 of the Complete Discography" on Halcyon, HALC 142, and the 2005 compilation series "The Glenn Miller Story, Vol. 1-2" on Avid Entertainment. "Doin' the Jive" was composed by Glenn Miller and Chummy MacGregor in 1937 and recorded for Brunswick on November 29, 1937, and released as Brunswick 8063 with "Humoresque"