Glenn Miller be mentored by other professional musicians. In the beginning, he was the main trombone soloist of the band. But when Jack Teagarden joined Pollack's band in 1928, Miller found that his solos were cut drastically. He realized that his future was in arranging and composing. He had a songbook published in Chicago in 1928 entitled "Glenn Miller's 125 Jazz Breaks for Trombone" by the Melrose Brothers. During his time with Pollack, he wrote several arrangements. He wrote his first composition, "Room 1411", with Benny Goodman, and it was released as a 78 by Brunswick Records under the name Benny Goodman's
Glenn Miller his 50-piece Army Air Force Band and take it to England in the summer of 1944, where he gave 800 performances. While in England, now Major Miller recorded a series of records at EMI owned Abbey Road Studios. The recordings the AAF band made in 1944 at Abbey Road were propaganda broadcasts for the Office of War Information. Many songs are sung in German by Johnny Desmond and Glenn Miller speaks in German about the war effort. Before Miller's disappearance, his music was used by World War II AFN radio broadcasting for entertainment and morale as well as counter-propaganda to