Throughout his career, Gregorian has taken an active role as a performer and presenter of chamber music. He is the founder and artistic director of the Four Seasons Chamber Music Festival, which will celebrate its 25th Anniversary Season in the coming season and has appeared at festivals worldwide, including the SpringLight (Finland), Storioni (Holland), Summer Solstice (Canada), Casals (Puerto Rico), Intimacy of Creativity (Hong Kong), Voice of Music in the Upper Galilee (Israel), Taos, Bard, Bravo! Vail Valley, Santa Fe, Skaneateles, Music in the Vineyards, Bach Dancing and Dynamite Society, Cactus Pear, Chesapeake, Madeline Island, Kingston, and Manchester festivals. He is a member of the Cooperstown Quartet, has performed extensively with Concertante and the Daedalus Quartet, and has recorded for National Public Radio, New York’s WQXR, and the Bridge and Kleos labels.

An active and committed teacher, Gregorian was formerly the Four Seasons Chamber Music Festival Distinguished Professor in Music at East Carolina University where he has been on the violin/viola/chamber music faculty since 1998. He has taken a leading role in creating opportunities for talented students and young professionals through Four Seasons’ Spring Workshop and Next Generation initiatives and is on the faculty of the Taos School of Music.

He performs on a Francesco Ruggeri violin from 1690 and a Grubaugh and Seifert viola from 2006.