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
Sometime (Glenn Miller song) 6101. The liner notes for the album by Brad McCuen described the song as follows: "Glenn and his close friend Chummy MacGregor, the band's pianist, collaborated on this quality pop song. It is a mystery why Glenn did not include this song among the hundreds he later recorded. Ray Eberle has the vocal." The version included was the April 18, 1939 performance at the Meadowbrook. There were five broadcast performances of “Sometime” by Glenn Miller and his Orchestra in 1939. It is Score 117 in the library and the composer credits are listed as Glenn Miller and John Chalmers MacGregor.