Byzantine Chant is the musical genre traditionally used in the Greek and Antiochian Orthodox Churches. In the Old World, these Churches offer formal musical training in Byzantine Chant -- in their own languages, of course (Greek or Arabic). In many American parishes, those who know the Byzantine Chant melodies of the hymns can only sing the hymns in their Old World languages. Formal instruction in Byzantine Chant -- in English -- is available in only a few American cities. St. Louis is not one …