In my LOTH books, apparently to avoid such “tedious” repetitions, I’ve noticed that in those instances where one of the psalms in the complementary psalmody (Psalms 120-128) is used in the current psalmody for an office that day, restrictions are placed on which series in the complementary psalmody may be used that day. Complementary psalmody series I consists of Psalms 120-122; series II, Psalms 123-125; series III, Psalms 126-128. The Divine Office website (
divineoffice.org) does not seem to include these restrictions in its daily listings.
Below is at least a partial listing of the restrictions I am talking about:
On Friday of Week 2, because Psalm 121 (part of series I of the complementary psalmody) is said in the current psalmody for the evening office that day, the rubric after the current psalmody for the daytime office says, “At the other [daytime] hours, the complementary psalmody from series II and III is used.”
On Monday of Week 3, because Psalm 123 (part of series II) is said in the evening office that day, the rubric says, “At the other hours, the complementary psalmody from series I and III is used.”
On Tuesday of Week 3, because Psalm 125 (part of series II) is said in the evening office that day, the rubric says, “At the other hours, the complementary psalmody from series I and III is used.”
On Wednesday of Week 3, because Psalms 126 and 127 (part of series III) are said in the evening office, the rubric says, “At the other hours, the complementary psalmody from series I and II is used.”
On Saturday of Week 3, because Psalm 122 (part of series I) is said in the evening office that day, the rubric says, “At the other hours, the complementary psalmody from series II and III is used.”
On Monday of Week 4, because Psalm 120 (part of series I) is in the current psalmody for the daytime office, the rubric says, “At the other hours, the complementary psalmody from series II and III is used.”
On Thursday of Week 4, because Psalm 128 (part of series III) is in the current psalmody for the daytime office, the rubric says, “At the other hours, the complementary psalmody from series I and II is used.”
Ordinarily, the rubric after the current psalmody for the daytime office simply says, “At the other hours, the complementary psalmody is used.”