A Dictionary of Music and Musicians/Nocturns

NOCTURNS (Lat. Nocturni, Nocturnæ Orationes. The Night Hours). Portions of the Office of Matins, consisting of Psalms, Antiphons, and Lessons, of which three divisions are usually sung, on Sundays and Festivals, and one only on Ferial Days. [See Matins.]

[ W. S. R. ]