do  Roupen Altiparmakian and John Matoian work in the same industry?
Roupen Altiparmakian Roupen Altiparmakian is a master of the violin and oud, born in Adana, Turkey.
Mato Valtonen Markku Juhani ”Mato” Valtonen (born 21 February 1955 in Loimaa) is a Finnish actor, musician and entrepreneur. Valtonen has been a member of the Finnish band Sleepy Sleepers since 1975 and the Leningrad Cowboys since 1989.