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Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”

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Views from the Choir Loft

Juggling Holy Days of Obligation

Andrew R. Motyka · November 6, 2013

OLY DAYS OF OBLIGATION are a relatively contentious subject among liturgical geeks like me. Questions like: Which days get precedence? Are/Should the obligation be lifted when the day falls on Saturday? Can you “double dip” on obligations (please don’t go down this rabbit hole)? The Solemnity of the Immaculate Conception of the Blessed Virgin Mary hits many of these questions.

In the United States, the obligation of several of our holy days is abrogated (made non-obligatory) when the feast falls on Saturday or Monday. While there is plenty of legitimate debate over whether this should be the case, the bishops nonetheless have the authority to lift this obligation. Next year (2014), for example, All Saints will fall on a Saturday, and the obligation to attend Mass will be lifted.

For that principle, though, the Solemnity of the Immaculate Conception is the exception. Even when December 8 falls on a Saturday or Monday, it retains its obligatory status because Mary of the Immaculate Conception is the patron saint of the United States. She holds a special devotion in this country and so is celebrated on any day.

When Immaculate Conception falls on a Sunday, however (like this year), the celebration is shifted. “Wait, Andy,” I can hear you say, “I thought that in your previous, handsome, brilliantly insightful post that you showed that Solemnities take precedence over Sunday celebrations.” Of course they do, my fellow calendar enthusiast, when that Sunday is in Ordinary Time or in the Christmas Season. However, according to the General Norms on the Roman Calendar (#5):

Because of its special importance, the celebration of Sunday gives way only to Solemnities and Feasts of the Lord; indeed, the Sundays of Advent, Lent, and Easter have precedence over all Feasts of the Lord and over all Solemnities. In fact, Solemnities occurring on these Sundays are transferred to the following Monday unless they occur on Palm Sunday or on Sunday of the Lord’s Resurrection. (emphasis mine)

Sundays of Advent have precedence over all Feasts of the Lord and Solemnities and should be transferred to the following Monday. Therefore, this year we celebrate Immaculate Conception on Monday, December 9, since Sunday, December 8 is the 2nd Sunday of Advent. So, you are obligated to attend Mass on both days, right? Not so fast. According to this past February’s newletter from the USCCB Committee on Divine Worship:

The obligation of the faithful to attend Mass remains attached to the day itself (December 8), however, and so it does not transfer with the liturgical observance.

This year, the obligation to attend Mass on Immaculate Conception is lifted. I strongly encourage you to attend anyway, of course, since this feast should hold a special place in our devotions as Christians in general and Americans in particular.

Tune in next time for some more calendar geekery.

Opinions by blog authors do not necessarily represent the views of Corpus Christi Watershed.

Filed Under: Articles Last Updated: January 1, 2020

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About Andrew R. Motyka

Andrew Motyka is the Archdiocesan Director of Liturgical Music and Cathedral Music for the Archdiocese of Indianapolis.—(Read full biography).

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President’s Corner

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    Our tiny 501(c)3 nonprofit organization exists solely by generous readers who donate $5.00 per month. We have no endowment; we have no major donors; we run no advertisements; we have no savings. A donor wrote to us: “I so appreciate all you do and have done, and your generosity is unprecedented. I am honored to be able to make a monthly contribution.” Another monthly donor says: “Thank you for everything CC Watershed does. We are able to add so much solemnity to Holy Mass due to the resources made available here.” Can you spare a few dollars each month to help us survive?
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    Dom Pothier • Photo from 1904
    Dom Paul Cagin, in a 1904 publication (L’oeuvre de Solesmes dans la restauration du chant grégorien) made sure to include a beautiful image of Dom Pothier, the legendary abbot of St-Wandrille. Also shown is a very young Dom André Mocquereau. Auguste Pécoul—considered the spiritual “son” of Abbat Prosper Guéranger of Solesmes—wrote as follows on 24 June 1901: “To forestall any confusion, let us remember that there is just one Gregorian notation—that restored, according to the ancient manuscripts, by the eminent Abbot of Saint-Wandrille, Dom Pothier.” ✠
    —Jeff Ostrowski
    PDF • “3-Voice Motet” (Father De Laet)
    I believe 99% of our readers will recognize this hymn tune. Perhaps Father Edgard De Laet should have called it a ‘hymn’ instead of a ‘motet for three voices’—but he’s technically correct, since MOTET is defined as: “a short piece of sacred choral music, typically polyphonic and unaccompanied.” The even verses are for three voices, as you will see if you download the PDF score at #20245. The odd verses may be song a cappella SATB or unison with organ.
    —Jeff Ostrowski

Quick Thoughts

    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    “Reminder” — Month of January (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. Signing up couldn’t be easier: simply scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski

Random Quote

The eminent theologian Suarez (who died in 1617) […] took the position that a pope would be schismatic “if he, as is his duty, would not be in full communion with the body of the Church as, for example, if he were to excommunicate the entire Church, or if he were to change all the liturgical rites of the Church that have been upheld by apostolic tradition.”

— Monsignor Klaus Gamber (1981)

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  • Dom Pothier • Photo from 1904
  • PDF Chart • “Plainsong Rhythm”
  • PDF • “3-Voice Motet” (Father De Laet)
  • PDF Download • “Hymn for 2 Voices”

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