Триодь

Triodion refers to two liturgical books that contain sequences (services) with variable prayers for the moving days of worship of the annual circle and between prayers they have three songs, i.e. incomplete canons, consisting not of nine or eight songs, but of three (three songs), four (four songs) and two (two songs). The books got their name from the canons of the Tripes. Three songs, four songs, and two songs are assigned to be sung only on weekdays, but not on Sundays; over the course of six weekdays, all nine songs of the canon are sung. Two Song consists of 8 and 9 songs. It is placed in a triodion only on Maundy Tuesday at Matins, and in each three canticle and four canticle there are 8 and 9 cantos, before these cantos on Monday there is the 1st canto, on Tuesday - 2, on Wednesday - 3, on Thursday - 4, on Friday - 5, and on Saturday - 6 and 7 cantos. So, on weekdays, except Saturday, three songs are sung, and on Saturday four songs are sung. Both Triodions commemorate different events, are sung at different times and have special names: one is called the Lenten Triodion, and the other is the Colored Triodion.