Dr. Koji Otsuki


Contact Information


Philadelphia, Pennsylvania

Early Music Skills & Interests

Cello, Viola, Violin

Early Music Affiliations

Conductor, Music/Artistic Director, Music Librarian


KOJI OTSUKI is a versatile performer, teacher, and conductor specializing in the historically informed performance of the music of J.S. Bach. His mentors include Helmuth Rilling with whom he studied at Oregon Bach Festival over three festival seasons (Eugene, Oregon) and at Bachwoche 2004 (Stuttgart, Germany) with a scholarship from the Internationale Bachakademie Stuttgart. He is also Bach coach and head music librarian at the Marlboro Music Festival, where he collaborates with Mitsuko Uchida and other world-class musicians.

After receiving a Master’s degree in Choral Conducting at Temple University, he studied Bach in Tokyo as a Japanese government fellow under Masaaki Suzuki, director of the Bach Collegium Japan. While in Tokyo, he also studied baroque violin, flauto traverso, baroque voice, and early music ensemble with foremost experts of our time. After his return, he continued his study with Stanley Ritchie et al. in a doctoral program at Indiana University Bloomington.

His recent international engagements include Otaru Viola Masterclass in Japan (Januaries 2015-9), Viola Space Taiwan in Kaohsiung, Taiwan (January 2016), Shanghai Conservatory of Music in China (November 2016), National Taiwan Normal University in Taipei (September 2017), and the Aichi University of the Arts in Japan (Fall 2018). Koji is the founding director of the Gamut Bach Ensemble based in Philadelphia, whose concerts are highly attended in the Philadelphia Chamber Music Society’s concert series.

He now serves as the artistic director of the Bach Collegium–Fort Wayne, a period instrument and vocal ensemble.


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