Miller led one of the most popular and best-remembered dance bands of the swing era. In his lifetime he was seen as an intense, ambitious perfectionist, and his success was built on the precise playing of carefully crafted arrangements, rather than propulsive swing or fine jazz solo improvisation (his only important jazz soloist was Bobby Hackett). He was particularly noted for the device of doubling a melody on saxophone with a clarinet an octave higher. His arrangements were seamless and rich. Paradoxically, however, although he had many hits with sentimental ballads performed by such singers as Ray Eberle and Marion Hutton, it was his swinging riff tunes, for example In the Mood and Tuxedo Junction, which became most famous. In 1943, he published Glenn Miller’s Method for Orchestral Arranging.
http://www.pbs.org/jazz/biography/artist_id_miller_glen.htm

Bio~ http://www.biography.com/people/glenn-miller-37990#mysterious-death