The Magnificat, in Latin also canticum Beat(issim)ae Virginis Mariae (the song of the (most) Blessed Virgin Mary), is a common part of Christian worship, for instance traditionally included in vespers, evensong or matins. As such it is often sung and was set to music by various composers. In Gregorian chant the Magnificat is sung according to the eight traditional psalm tones: Also the newer psalm tones were used for Magnificat settings: Apart from the Magnificat sung to the psalm tones, in Gregorian chant there are also the Magnificat antiphons or O Antiphons inspiring composers like Arvo Pärt.