John Haines-Eitzen has performed in most of the world's major concert halls. He was a member of the Philadelphia Orchestra from 1995 until 2005 and has also performed with the New York Philharmonic, North Carolina Symphony, and the Columbus Symphony, of which he became the youngest member after winning an audition while still an undergraduate at Indiana University. His solo and chamber music appearances have taken him to such diverse locations as Sapporo, Japan, Sao Paulo, Brazil, and to the Casals Festival in Puerto Rico, the Sarasota Music Festival in Florida, and numerous concert series throughout the United States and abroad. He has performed in the Philadelphia Orchestra's Chamber Music Series with pianists Wolfgang Sawallisch and Yefim Bronfman and at the Saratoga Chamber Music Festival in New York with mezzo-soprano Frederica von Stade and pianist Jean-Yves Thibaudet. Mr. Haines-Eitzen is the founder and artistic director of the Vandermark Ensemble, a nonprofit chamber music consortium, and has appeared on National Public Radio. He holds a Bachelor of Music and Performer's Certificate from Indiana University where he was a student of Janos Starker. His earliest musical studies were with long-time Pottstown Symphony Orchestra member Robert Merkley in the Boyertown School District’s music program.

Mr. Haines-Eitzen is currently Senior Lecturer and Artist in Residence at Cornell University where teaches applied cello performance and coaches chamber music. His teaching focuses on an ergonomic approach to cello playing centered on breathing control, relaxation techniques, and motion analysis as they relate to musical expression. As a musical coach, he strives to enhance students' interpretive skills through the understanding of form and stylistic performance practice.