Evening Prayer (Anglican)
In churches the Magnificat and the Nunc dimittis (canticles), like the psalm, are often sung to a chant.  This is a tune which repeats itself for every verse or every two verses and is sung to the natural rhythm in which it would be spoken.  In cathedrals, or in churches with a good choir, the two canticles are sung to special music (like an anthem) composed by some well-known composer.  There is usually an organ accompaniment.