First, Armenian Apostolic Orthodox Church is NOT monophysite. Second, among Armenians there were if not many at least considerable number of Chalcedon Armenians, who proffesed the Bysantiym rite. In Armenian history they are called Hye-Horoms. No doubt their art and religious services were influenced by our closest neighbours - the Georgians. Many artisians belonging to this 'sect' in Armenian terms have been employed as painters, architechts etc. to various royal courts.
As a side note among Armenians, beside Chalcedon Armenians, there were also Roman Catholic Armenians, Protestants, etc. all of them none the less ARMENIANS.