He also studied composition at the Schulich School of Music, McGill University with composer Philippe Leroux.

Sargsyan's music has been performed in Armenia, UK, Germany, Austria, Belarus, Sweden, Lithuania, Latvia, Belgium, Russia, Greece, Poland, Italy, Japan, Canada, as well as in the United States.

His composition Luis Zvart was performed at the 6th World Symposium on Choral Music (Minneapolis, Minnesota 2002).

His arrangement of Khorurd Metz[1] (Great Mystery) is included in the Oxford University Press anthology World Carols for Choirs[2] (2005)[3] and has been recorded by BBC Singers.

Sargsyan's work Hunting the Hunter was premiered[6] under his own baton in 2012 at Carnegie Hall.