Je to starobylá katolická modlitba zo 4.storočia, CHVÁLA na NEPOŠKVRNENÚ KRÁSU Najsvatejšej Panny.

V modlitbách cirkvi sa objavuj pravidelne v druhých vešperách sviatku Nepoškvrnené počatie Panny Márie.

Táto modlitba preberá časť textu z biblickej KNIHY JUDIT a aj slová z PIESNI PIESNÍ /4,7/

John Dunstable - Quam pulchra es - YouTube

John Dunstable - Quam pulchra es - YouTube

John Dunstable was an English composer who was the leading composer of 15th century England and among the most influential composers of his time. He developed the contenance angloise style ("English manner"), which pioneered the prominent use of harmonies with thirds and sixths. Crucial in the developing style of the Burgundian School, Dunstaple's music spans the transition from the medieval to the Renaissance periods.

The text is a good example of a wasf, a textual form in the Song of Songs in which one of the lovers describes and praises the other in metaphorical terms, often moving up (or down) the beloved's body. In this case, the wasf is spoken by the young man about the young woman; she responds with a most intimate invitation.