Composer, trumpet player Robert Petrosyan was born in Yerevan, on August 28, 1930. Although musical abilities were discovered at an early age, he received music education at the age of 14. He studied at the Alexander Spendiaryan Music School, and at the same time played the trumpet in the Brass Band of Pioneers Palace. 1953-1957 he studied at the Romanos Melikyan Music School (Eduard Baghdasaryan's class), then entered the Department of composition of Yerevan Komitas State Conservatory (Grigor Yeghiazaryan's class), finishing it in 1962. From 1955 he worked as a trumpet player at the Gabriel Sundukyan State Academic Theater, and from 1960-1979 as the director and conductor of the local music section. 1963-1981 He has taught music in musicological subjects at several educational institutions. Since 1960 Petrosyan has created and directed pop and folk orchestras, which have received numerous awards and diplomas, participating in numerous republican and all-union contests. 1979-1986 he was the founder and artistic director of the Arevik children's vocal-instrumental ensemble of Public Radio and Television of Armenia. During those years, Arevik became the Laureate of Republican, Transcaucasian, and then USSR 60th Anniversary Contest, and received a Gold Medal in Dubna. 1986-1995 R. Petrosyan was the head of the Aram Merangulyan Folk Orchestra of Television and Radio. In 1995 under the patronage of Ministry of Defense of the Republic of Armenia he created the Elegy Pop Ensemble, which had concerts in Armenia and Artsakh. During those years Petrosyan was awarded the Gold Medal of the Ministry of Defense of the Republic of Armenia. 1993-2007 he was the Chief Music Advisor at the Mother See of Holy Etchmiadzin and the Armenian General Benevolent Union. Since 1972 Petrosyan was a member of the USSR Composers Union. He was also a member of the Art Councils of the Television and Radio Committee of the Republic of Armenia, and since 2003 an honorary member of the Armenian Music Society. R. Petrosyan authors a symphony, two string quartets, large-scale choral and instrumental, ensemble, and vocal pieces. A part of them is for children; often they can be heard from children who don't even know the author's name; they just sing songs that are to their liking. In them is revealed in all its versatility the miraculous world of childhood, diverse characters, thoughts, aspirations, dreams and endeavors of children. The musical language of the composer is basing on fret and intonation, rhythmical and metrical peculiarities of the national music. There are numerous arrangements works by Armenian, Russian and Western European composers for symphony, brass, folk and pop orchestras and individual instruments. 1957-2008 77 works by R. Petrosyan received Republican and All-Union prizes. More than 300 works by Robert Petrosyan are included in the Gold Fund of Public Radio of Armenia.