[1] He was the founder and the lead singer of Apostles (1968 – 1979), the first rock band performing songs in their native language in the history of the Soviet Union.

It was during those years when he made his first steps in writing songs and joined the boy's chorus at the National Academic Theater of Opera and Ballet.

By blending Armenian spiritual music with the thriving rock of the time, the band left a remarkable impression on its listeners and became a true revelation.

In 1971, Meschian gave an outstanding performance in the USSR festival for young musicians in Poland, where the band was only allowed to participate under the guidance of the Communist Committee Activists.

In 1972, Meschian successfully graduated from university, but due to the anti-Meschian attitudes infested in the Armenian Soviet Socialist Republic, it took him two years to find a job as an architect.

In addition, he formed a new band called Apostles 90 with Wayne Johnson on the guitar, John Leftwich on the bass and Art Rodrigues on the drums.

In 1993, Meschian released yet another album called The Monologue of the Insane Violinist, and gave a series of concerts with Apostles 90 in Pasadena, CA.

In 1995, Meschian released two other albums; Wander, which included a couple of songs from the Requiem and Communion which he deems the pinnacle of his musical career.

There, he gave a series of concerts which were highly esteemed and appreciated by both the general public and his long term fans who had been loyal to his art since the Soviet times.

In 2007, the construction of the new section of the Mesrop Mashtots Institute of Ancient Manuscripts begins under the guidance of the chief architect Arthur Meschian.

This time, he designs and conceives the first newly built museum of Komitas in Yerevan, Armenia In 2011, Arthur Meschian is awarded with the Mesrop Mashtots Medal.