
1) Composition by Arvo Pärt
Found on
https://www.crosswordclues.com/clue/triodion

The Triodion (Τριῴδιον, Triōdion; Slavonic: Постнаѧ Трїωдь, Postnaya Triod; Triodul, Albanian: Triod/Triodi), also called the Lenten Triodion (Τριῴδιον κατανυκτικόν, Triodion katanyktikon), is the liturgical book used by the Eastern Orthodox Church containing the propers for the fasting period preceding ...
Found on
http://en.wikipedia.org/wiki/Triodion

(from the article `church year`) The principal cycle consists of (1) 10 weeks before Easter, contained in the Tridion (pre-Easter liturgical service book); the first four of these ... ...Resurrection; it includes the period of Great Fast (Lent), preceded by three Sundays of preparation and the period of 50 days following Easter. ... ...
Found on
http://www.britannica.com/eb/a-z/t/81
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