Metropolitan Cantor Institute – Full service site for all manner of Byzantine cantorial music, musical history and continuing education. MCI videos about services for the departed can be found here.
Prostopinije, or Slavonic simple chant – The Anaphora from the Divine Liturgy & Installation of the Most Rev. Metropolitan Archbishop Stephen Kocisko (1969). Singing of the Carpatho-Rusyn Prostopinije liturgical chant in the Ruthenian church.
The Divine Music Project – A project of St. Anthony’s Monastery in provides 6000+ pages of Byzantine music in both Western as well as Byzantine notation, according to the style of monastic chanting used in their order. Each element offers both the printed music as well as an audio example of the music:
Eastern Catholic Liturgical Music
Divine Liturgy of St. John Chrysostom, sung at Recorded 12/06/12 at St. Mary Magdalene Byzantine Catholic Church in Fairview Park, Ohio. The celebrants are the the Mitred Archpriest Dennis Hrubiak and Deacon Daniel Surniak. (Dec. 12, 2012)
Orthodox Chant (printed sheet music)
Index of Greek Catholic Liturgical Recordings
Sacred Music Library, Antiochian Orthodox Archdiocese