Since 1994 , he has served as the chairman of the Armenian Composers Assembly , established by him .
From 1986 to 1991 he was the vice-president of the Armenian Composers ' Union .
Since 1994 , vice-president has served as the chairman of the Armenian Composers Assembly , established by vice-president .
From 1986 to 1991 he was the vice-president of the Armenian Composers ' Union .