In November of 1977, Director Robert Eaton noticed a significant absence of choruses in the Northborough/Marlborough area dedicated to the performance of classical choral music. After discussion with a few musical friends, he decided to put out a call for interested singers to attend a rehearsal. 

In May 1978, twenty-eight singers presented in concert Mozart’s Requiem and Bach’s cantata Ein Feste Burg. Organ accompaniment was used and the concert was held at Trinity Episcopal Church in Shrewsbury.

In May, the first concert with orchestra was presented, using local area instrumentalists at a very modest wage scale. In addition, the chorus collaborated with the Marlborough Symphony in a presentation of La Traviata.

Assabet Valley Chambersingers was established to provide an outreach to community groups. This small eighteen member ensemble has presented varied programs of secular, sacred, and popular works to nursing homes, library arts series, art show openings, special community events, and programs in collaboration with area churches.

AVM introduced the Student Scholar Award. A Student Scholar Award is available to a local graduating high school senior
interested in pursuing music programs in college. 

The Assabet Valley Mastersingers formally introduced the Apprentice Singer Program. This program offers an extension of a high school student’s choral experience by giving talented and motivated choral students the opportunity to prepare and perform classic masterworks in concert with mature vocalists, professional soloists and instrumentalists within our community.

AVM presented Einhorn’s choral oratorio Voices of Light paired with the classic Dryer silent movie Joan of Arc.

The Assabet Valley Mastersingers announced Grace Choi as its Assistant Conductor.

AVM celebrated their 45th Season (2022-2023) with performances including, Elijah Summer Sing, Celebrate Peace, Messiah Sing, Coronation Celebration and A Latin American Celebration featuring Alturas Duo, Andean woodwind specialist and flutist Gonzalo Cortes and Columbian Tenor, David Rivera Bozon.