James Miller is the Associate Principal Trombone with the Los Angeles Philharmonic, a position he has held since 1999. His duties include performing on alto, tenor, and bass trombone; tenor tuba; and bass trumpet. His previous orchestral experience includes the North Carolina Symphony, the Long Island Philharmonic, the New York Philharmonic, and the Dallas Symphony. Miller earned his Bachelor of Music Education degree from the University of Northern Iowa and his Master of Music degree from The Juilliard School, where he was a scholarship student of Per Brevig.

His playing experience includes performances with the Silk Road Ensemble, the Paragon Ragtime Orchestra, Ensemble ST-X, the Michael Bublé Big Band, and a variety of jazz, rock, ska, and Latin ensembles. He has been a participant in the Mainly Mozart Festival, the Aspen Music Festival, and the Ojai Music Festival as well as performing as a soloist with the Los Angeles Philharmonic and on the Los Angeles Philharmonic's Green Umbrella series. His solo career spans performing with orchestras and wind enssembles in the United States and Mexico. As a composer, he has had world premieres at New York's Lincoln Center and continues to perform his own works in solo performances throughout the country. He serves on the faculty of the University of California Los Angeles (UCLA) and the Aspen Music Festival.

Miller is a Conn/Selmer and a Denis Wick clinician and has released three CDs on All Barks Dog records: From Coast to Coast, Trio for Voice, Trombone and Cello and Delays, delays.