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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

PDF Download • “Evening Masses and Days of Obligation” (58 pages)

Jeff Ostrowski · November 25, 2017

3819 evening Y RECENT POST about “simultaneous fulfillment” of Mass obligation generated quite a lot of email from readers. We always love getting messages, but some people who wrote chose not to read the article—something normal and expected, but which never fails to make me sad. One email came from Fr. Shawn P. Tunink, who gave permission for us to share this marvelous dissertation:

    * *  PDF • “Evening Masses and Days of Obligation” (58 pages)

It covers a lot of ground, including whether permission for “anticipated” Masses has anything to do with how Jewish people calculated daytime. It also talks about the very first time this permission was granted, out of a concern for (…wait for it…) people on skiing trips!

A brief excerpt from page 40:

Only in the case of a feast of the Lord or a solemnity falling on a Sunday would a feast actually take precedence over the Sunday. In this case there would be only one obligation to attend Mass. However, when a feast day falls on Saturday or Monday, the celebration of Sunday as the Lord’s day retains its proper distinctiveness, including its own proper obligation. Liturgically, there are two separate feasts being celebrated on two separate days, each with its own proper obligation. Even though there is a period of time that would overlap for the fulfilling of either obligation, this would not remove the fact that there are two distinct obligations to attend Mass.

This is definitely a PDF you will want to download and save on your hard drive for a long time.

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

Filed Under: Articles, PDF Download Tagged With: anticipated Mass, simultaneous Mass obligation, vigil Mass Last Updated: January 1, 2020

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About Jeff Ostrowski

Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He resides with his wife and children in Michigan. —(Read full biography).

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Corpus Christi Watershed

President’s Corner

    Music List • (2nd Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday—1 March 2026—the 2nd Sunday of Lent (Year A). If such a thing interests you, feel free to download it as a PDF file. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the flourishing feasts website alongside the official texts in Latin.
    —Jeff Ostrowski
    Particularly Beautiful
    The 2nd Sunday of Lent has magnificent propers. Its INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    Which Mass?
    In 1905, when the Vatican Commission on Gregorian Chant began publishing the EDITIO VATICANA—still the Church’s official edition— they assigned different Masses to different types of feasts. However, they were careful to add a note (which began with the words “Qualislibet cantus hujus Ordinarii…”) making clear “chants from one Mass may be used together with those from others.” Sadly, I sometimes worked for TLM priests who weren’t fluent in Latin. As a result, they stubbornly insisted Mass settings were ‘assigned’ to different feasts and seasons (which is false). To understand the great variety, one should examine the 1904 KYRIALE of Dr. Peter Wagner. One should also look through Dom Mocquereau’s Liber Usualis (1904), in which the Masses are all mixed up. For instance, Gloria II in his book ended up being moved to the ‘ad libitum’ appendix in the EDITIO VATICANA.
    —Jeff Ostrowski

Quick Thoughts

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    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
    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

To end an impropriety, noticed particularly at orchestral Vespers, when two or three Psalms are sung with full orchestra, and then the other Psalms and the Hymn are rapidly hurried through with organ accompaniment only […] we order that at Mass all portions of the text, including “Agnus Dei,” be sung with orchestral accompaniment. […] Moreover, the musicians are not allowed to put the instruments away and leave their places before the conclusion of the sacred function.

— Cardinal Patrizi (18 November 1856)

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