Ecumenical Patriarchate of Constantinople (North America, USA). Official website
This website contains more than 6000 pages of Byzantine music in Western and Byzantine notation in the style of chanting used on the Holy Mountain. The scope of this project covers the liturgies of St. John Chrysostom, St. Basil the Great, St. James, and the Liturgy of the Presanctified Gifts, as well as various doxologies, and hymns for Vespers, Orthros, the Mysteries, and the Menaion. The words of the hymns are provided in Elizabethan English, Modern English, and Greek.