As with all other Orthodox church music, a canon is sung by a
choir or
cantor in
a cappella chant. An ode of the canon is begun by singing the Biblical canticle from its beginning. At some point, this is interrupted by an introductory
stanza called an ("link"), which poetically connects the theme of the biblical canticle to the subject of the canon. Following the and sung alternately with the subsequent verses of the Biblical canticle are a series of hymns (
troparia), set in the same melody and meter as the , that expand on the theme of the canon. The ode is completed with a final stanza called the . This might be a repetition of the , the of the last canon when more than one canon is being sung together, the of the canon for an upcoming
major feast day, or some other verse prescribed by the service books. ( means "coming down" and the verse is so called because as originally performed the two choirs would descend from their places on the left and right sides of the church to sing it together in the middle.) Nearly all canons have only eight odes, the second ode generally being omitted since its canticle is quite penitential and so used only on the triode of the Tuesdays of Great Lent as well as in a few canons of an archaic style such as the aforementioned
Great Canon. Because a canon is composed of nine odes, it can be conveniently divided into three sections. Between Ode III and Ode IV, a
sedalen or "sitting hymn" is sung. Between Ode VI and Ode VII, a vestigal is sung with only its , or initial stanza, and the first or . If an
akathist is to be chanted in conjunction with a canon, it is inserted after Ode VI. The typical order for a full canon, as currently, in most places, chanted at matins is as follows: • Ode I • Ode III •
Little Litany •
Kathisma Hymn • Ode IV • Ode V • Ode VI • Little Litany •
Kathisma Hymn • (
Synaxarion) • Ode VII • Ode VIII •
Magnificat • Ode IX • Little Litany •
Exapostilarion Modern arrangement As detailed above, the Biblical canticles are now rarely used, each ode beginning with the , save for the ninth ode where the
Magnificat, which forms half of its canticle, is sung in its entirety before the , except on certain major feasts when that ode has a special structure. Following the , each has a brief refrain, determined by the subject matter of the canon, replacing the verse of canticle. The total number of is determined by local usage. Theoretically, each ode has fourteen (or occasionally sixteen), with some repeated if the service books do not provide enough of them and some conjoined if there are too many. This makes the canon too lengthy for typical parish use, so fewer are sung or in Russian practice, read. == Usage ==