In 1947 he immigrated in Soviet Armenia, where he continued his musical studies in Yerevan with prof. Karp Dombaïev and then in the Moscow Conservatory in the class of David Oistrakh.

In 1975, during his USA tour, he played in Boston the Violin Concerto by Brahms; The story goes that, at the conclusion of the concert, the conductor Arthur Fiedler, who was very hard to please and given to lavishing praise, embraced the young violinist on stage with paternal love and wished him success.

Jean Ter-Merguerian was also member of juries of international competitions: "Paganini" in Genoa, Italy, "Sarasate" in Pamplona, Spain, "Tchaikovsky" in Moscow and "Khachaturian"[6] in Yerevan.

[8] The 1966 Armenian Radio broadcast recording of Bach Double Concerto is part of a 2CDs compilation dedicated to his colleague, the violinist Anahit Tsitsikian.

[9] Armenian Radio TV archives are full of Jean Ter-Merguerian's audio and video recordings, yet to be discovered, some of them already on YouTube In 2020 Rhine Classics label has released a 5CD box dedicated to his art "The soul of violin":