Troparion is a short poetic hymn referring to the Feast of the day. This name is applied to the Apolytikion and to the stanzas of the canon of the Feast. The Apolytikion (dismissal hymn) gets its name from its position in the Vespers service. However, at the Divine Liturgy it is commonly called Troparion and is sung after the little entrance.

To determine the Troparia for a specific day. (See the definition of the Final Kontakion)

As a general rule the Troparia are followed by the Troparion (or the Kontakion - The Typicon authorizes the practice) of the Patron Saint of the church. This Troparion is omitted for the major feasts. The Kontakion of the Menaion Feast are also to be sung before the Final Kontakion. However, today for the Divine Liturgy, the practice is to limit the Kontakia to the Final Kontakion.

It is customary when celebrating the Divine Liturgy in memory of a Dead person (9th Day, 40th Day, or Anniversary) to add the Troparion of the Dead after the Troparion of the Feast and the Kontakion of the Dead before the Final Kontakion.

There are no indication in the Typicon that the Glory be … Now and ever … precede the Final Kontakion.

There are Troparia and Kontakia assigned for each day of the week, to be used in case the Menaion does not provide one.

Weekdays:

• For a first or second class Feast and their Leave-taking: Troparion of the Feast three times. For the Nativity, Theophany, Resurrection, the New Week, and the Leave-taking of the Resurrection the Hypakoi of the Feast is added then the Final Kontakion.
• For the Preparation and the Service of a Feast: Troparion of the Preparation or of the Feast, Troparion of the Menaion Feast, Troparion or Kontakion of the Patron Saint of the church, then the Final Kontakion.
• For a third or fourth class Feast: Troparion of the Feast, Troparion or Kontakion of the Patron Saint of the church, then the Final Kontakion.
• For a fifth class Feast: Troparion of the Feast, Troparion or Kontakion of the Patron Saint of the church, then the Final Kontakion.

On Sundays:

• For a first class Feast: Troparion of the Feast three times. For the Nativity, Theophany, Resurrection, the New Week, and the Leave-taking of the Resurrection the Hypakoi of the Feast is added then the Final Kontakion.
• For a second class Feast and the Leave-taking of first and second class Feasts: Troparion of the Resurrection, Troparion of the Feast twice, Troparion or Kontakion of the Patron Saint of the church, then the Final Kontakion.
• For the Preparation and the Service of a Feast: Troparion of the Resurrection, Troparion of the Preparation or of the Feast, Troparion of the Menaion Feast (Only if the Menaion Feast is a third or fourth class Feast), Troparion or Kontakion of the Patron Saint of the church, then the Final Kontakion.
• For a third, fourth, or fifth class Feast: Troparion of the Resurrection, Troparion of the Feast, Troparion or Kontakion of the Patron Saint of the church, then the Final Kontakion.

N.B. These are the basic rules, there are many exceptions that CyberTypicon will manage directly for you.