Check out the new pages on Liturgical Chant at https://www.byzcath.org/chant . The first pages will concentrate on Carpathian Plainchant (Prostopinije) since it is the most commonly used among Byzantine Catholics whose spiritual ancestors are from the Ruthenian Church Tradition. Know any experts in other chant traditions (Mekite, Ukrainian, Romanian, Bulgarian and etc.)? Let us know at 73004.1253@Compuserve.com . We'd like to include their work here on Byzcath.org.