Eastern Orthodox Church

==== Music and chanting ====

[[File:Patriarchate Constantinopolis.jpg|thumb|Chanters singing on the [[kliros]] at the [[Church of St. George, Istanbul|Church of St. George]], [[Patriarchate of Constantinople]]]]

The church has developed eight modes or tones (see [[Octoechos]]) within which a chant may be set, depending on the time of year, feast day, or other considerations of the [[Typikon]]. There are numerous versions and styles that are traditional and acceptable and these vary a great deal between cultures.{{sfn|Ware|1993|p=238}}