Unison liturgical chant of the
Greek Orthodox church from the era of the
Byzantine Empire to the 16th century. It probably derived principally from Hebrew and Syrian Christian liturgies. A system of eight
modes, very similar to the eight Greek modes, was used for psalms and hymns, each mode (or
echos) consisting primarily of a few melodic formulas. The principal hymn genres were the
troparion (one or more stanzas of poetic prose), the
kontakion (a metrical sermon), and the
kanon (a complexly ordered set of hymn types).
See also Gregorian chant.
For more information on Byzantine chant, visit Britannica.com.