John then joined the New World Symphony in Miami Beach, under the direction of Michael Tilson Thomas, for one season before winning the principal trombone position with the Syracuse Symphony Orchestra. Following the Syracuse Symphony's dissolution in 2011, John held positions with the Virginia Symphony Orchestra and the Richmond Symphony Orchestra before coming to the Colorado Symphony. He has also performed with the Los Angeles Philharmonic, the Detroit Symphony Orchestra, the Baltimore Symphony Orchestra, the Rochester Philharmonic, and the Grand Teton Music Festival.  John currently serves on the faculty of the University of Northern Colorado as a trombone instructor.

A fan of the outdoors, John enjoys exploring beautiful Colorado's mountains with his wife, Hitomi, daughter, Alma, and their trusty dog, Django. He also enjoys playing the ukulele and guitar, singing, photography, and making sushi.

For more information and recordings, please visit his website at www.johnsipher.org.