As a chamber musician, Andonian has participated in the Marlboro Music Festival, the Perlman Music Program, Kneisel Hall, and Norfolk Chamber Music Festivals, and has performed with artists including Kim Kashkashian, Jonathan Biss, and members of the Juilliard, Cleveland, and Brentano string quartets.

In addition to NEC Prep, Andonian has taught previously at the Brooklyn College Conservatory of Music, the Kaufman Music Center’s Lucy Moses School, and Vivace Music Foundation’s VivacePrep program.
Andonian is a graduate of the New England Conservatory and The Juilliard School, and is pursuing a DMA at the CUNY Graduate Center. His principal teachers include Donald Weilerstein, Catherine Cho, and Mark Steinberg.