Day 49: Chapter 15: At What Times "Alleluia" Is to Be Said

From holy Easter until Pentecost without interruption
let "Alleluia" be said
both in the Psalms and in the responsories.
From Pentecost to the beginning of Lent
let it be said every night
with the last six Psalms of the Night Office only.
On every Sunday, however, outside of Lent,
the canticles, the Morning Office, Prime, Terce, Sext and None
shall be said with "Alleluia,"
but Vespers with antiphons.

The responsories are never to be said with "Alleluia"
except from Easter to Pentecost.