North American Numbering Plan usually shown in capital letters, were dialed. Later, the third letter, where implemented, was replaced by a digit, or an extra digit was added. This generally happened after World War II, although New York City converted in 1930. The adoption of seven-digit local numbers (2L-5N) was chosen as the requirement for direct distance dialing and progressively deployed starting the late 1940s. The famous Glenn Miller tune "PEnnsylvania 6-5000" refers to telephone number PE6-5000, a number still in service at the Hotel Pennsylvania (212 736-5000) in New York. Similarly, the classic film "BUtterfield 8" is set in the East Side of
Glenn Miller conjectural. That it would have been significant, whatever form(s) it might have taken, is not unlikely." Louis Armstrong thought enough of Miller to carry around his recordings, transferred to seven-inch tape reels when he went on tour. "[Armstrong] liked musicians who prized melody, and his selections ranged from Glenn Miller to Jelly Roll Morton to Tchaikovsky." Jazz pianist George Shearing's quintet of the 1950s and 1960s was influenced by Miller: "with Shearing's locked hands style piano (influenced by the voicing of Miller's saxophone section) in the middle [of the quintet's harmonies]". Frank Sinatra and Mel Tormé held the orchestra in