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 (a former arranger for Tommy Dorsey), Billy May and to a much smaller extent, George Williams, who worked very briefly with the band as well as Andrews Sisters arranger Vic Schoen According to Norman Leyden, "[s]everal others [besides Leyden] arranged for Miller in the service, including Jerry Gray, Ralph Wilkinson, Mel Powell, and Steve Steck." In 1943, Glenn Miller wrote "Glenn Miller's Method for Orchestral Arranging", published by the Mutual Music Society in New York, a one hundred sixteen page book with illustrations and scores that explains how he wrote his musical arrangements. "Major Alton Glenn Miller (Army Serial No.