For anyone dealing seriously with Christian music,
knowledge of Byzantine hymns is a must. The Byzantium era,
a golden age of Christianity which mingled the Church and
State (unlike in the US) followed a course from 330AD to
1453AD when the Turks seized Constantinople. In the
meantime, music was enriched by people like Romanos the
Melodian, Ioannis Koukouzelis (who became a monk in
Mt.Athos to avoid fame, yet while pasturing sheep he would
chant with an angelic voice that made the sheep stop
grazing) and St.Andrew of Crete, author of the Great Canon
of Lent. You may find a good assembly of Byzantine hymns
(saints' apolytikia) in
http://www.logos.cy.net/cyprus/chmain.html in Greek, in the
icon titled "Menologion" -imagine the month's name in
English to choose your saint. You need a sound card to
play wav files. In Christ,
Minos Orphanides