David Garrett is a member of the cello section of the Los Angeles Philharmonic and music faculty at California State University, Long Beach. Previous orchestra positions include the Houston Symphony and the San Antonio Symphony, where Garrett was Assistant Principal Cellist. Previous teaching positions include Trinity University and The University of Texas at San Antonio. He appears frequently as recitalist, chamber musician, and soloist, including many performances for the L. A. Philharmonic's chamber music series and Green Umbrella new music series. Writing in The Strad Magazine, Henry Roth observed that Garrett "is a polished and experienced musician…excellent in all departments."

Garrett maintains a wide range of musical interests. He has recorded modern cello works for the Albany and Opus One labels, his doctoral dissertation includes publication of previously unknown baroque cello works, and he pursues the standard literature in solo and chamber music performances. Garrett also plays viola da gamba and leads the Collegium Musicum ensemble at the Bob Cole Conservatory of Music. During summers he has performed and taught at the Edinburgh Festival, Texas Music Festival, Roundtop, Interlochen, and the Grand Tetons Music Festival. In addition to performing and teaching, Garrett maintains an active role in the community. He is an officer for the Los Angeles Violoncello Society, a member of the music committee at First United Methodist Church—Pasadena, publisher of Laszlo Varga's cello ensemble works, and a frequent volunteer for the L.A. Philharmonic’s education and outreach programs.