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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

“O Magnum Mysterium” • Do You Sing This?

Jeff Ostrowski · January 12, 2024

HERE’S A WONDERFUL expression in English: “He can’t see the forest for the trees.” Some—by focusing on details to the exclusion of everything else—end up looking ridiculous. For example, ROBERT F. KENNEDY was born into privilege. When he was a youngster he wanted to “work,” so he got a job delivering newspapers. The only problem is that he used the family chauffeur (!) and Rolls-Royce to deliver the papers. Readers are probably aware that many “trad influencers” often can’t see the forest for the trees when it comes to the sacred liturgy. By spreading false statements about the pre-conciliar liturgy, they often—in my humble opinion—do enormous harm to the so-called TRADITIONAL MOVEMENT. This disturbs me greatly. I believe the Extraordinary Form is extremely important because it emphasizes the continuity of the Catholic Church.

Sacred Liturgy • We sometimes encounter internet folks who insist that “everything before 1954 was absolutely perfect and can’t be improved.” Their minds are made up; it’s pointless to try to persuade them. In reality, however, numerous feasts were added to the liturgical calendar since TRENT which (arguably) should not have been. Especially painful were feasts that “replaced” or “annihilated” feasts whose propers went back at least 1,700 years. One could easily write numerous lengthy dissertations on feasts which have been modified, especially vis-à-vis the seasons of Christmas and Epiphany. Readers can get a ‘hint’ about how complicated these matters are by downloading a special chart created back in 2021.

O MAGNUM MYSTERIUM • The motet “O Magnum Mysterium” by Father Tomás Luis de Victoria (d. 1611) is world famous—and deserves to be. Abbat Joseph Pothier published a plainsong edition in the 1890s. Despite what some claim, this motet is appropriate throughout the season of Epiphany (which originally encompassed the our Savior’s nativity).

Submit Your Version • Do you sing this motet? If so, please send us a recording by your choir and we’ll post it! The following is a ‘live’ recording by my volunteer choir, sung a few weeks ago during Christmas Midnight Mass:

Here’s the direct URL link.

I created individual rehearsal tracks for each voice at #3792.

*  Mp3 Download • Live Recording (14 Jan 2024)

Season of the Epiphany • The readings after Christmas—that is to say, during EPIPHANYTIDE—talk about the events in the early life of our Lord: the naming of Jesus; His Baptism at the River Jordan; the finding in the temple; the Wedding at Cana; and so forth. The following hymn honors the HOLY NAME of our Savior:

To access this hymn’s media in the Brébeuf Portal, click here.

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

Filed Under: Articles Tagged With: Council of Trent, Epiphanytide, Feast of the Holy Family, Feast of the Holy Name, Season of Christmastide, Tomas Luis de Victoria Composer, Tomas Luis Vittoria composer Last Updated: January 18, 2024

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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

    Spectacular Communion Setting!
    The FAUXBOURDON setting of the Communion for the Baptism of the Lord (which will occur this coming Sunday) strikes me as quite spectacular. The verses—composed by the fifth century Christian poet, Coelius Sedulius—come from a long alphabetical acrostic and are deservedly famous. The feast of the LORD’S BAPTISM was traditionally the octave day of Epiphany, but in the 1962 kalendar it was made ‘more explicit’ or emphasized. The 1970 MISSALE ROMANUM elevated this feast even further.
    —Jeff Ostrowski
    PDF • “Music List” (Sunday, 11 January)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for Feast of the Baptism of the Lord (SUNDAY, 11 January 2025). If such a thing interests you, feel free to download it as a PDF file. The FAUXBOURDON verses for the Communion Antiphon—to say nothing of the antiphon itself—are breathtaking. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the monumental feasts website alongside the official texts in Latin.
    —Jeff Ostrowski
    Epiphany Hymn • “New 2-Voice Arrangement”
    The Von Trapp Family Singers loved a melody that was featured heavily (perhaps even “too heavily”) in the Brébeuf Hymnal. It goes by many names, including ALTONA, VOM HIMMEL HOCH, and ERFURT. If you only have one man and one woman singing, you will want to download this arrangement for two voices. It really is a marvelous tune—and it’s especially fitting during the season of Christmas and Epiphany.
    —Jeff Ostrowski

Quick Thoughts

    “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
    PDF Download • “In Paradisum” in English
    We always sing the IN PARADISUM in Latin, as printed on this PDF score. I have an appallingly bad memory (meaning I’d be a horrible witness in court). In any event, it’s been brought to my attention that 15 years ago I created this organ accompaniment for the famous and beautiful ‘IN PARADISUM’ Gregorian chant sung in English according to ‘MR3’ (Roman Missal, Third Edition). If anyone desires such a thing, feel free to download and print. Looking back, I wish I’d brought the TENOR and BASS voices into a unison (on B-Natural) for the word “welcome” on the second line.
    —Jeff Ostrowski

Random Quote

Ralph Vaughan Williams “was an atheist during his later years at Charterhouse and at Cambridge, though he later drifted into a cheerful agnosticism: he was never a professing Christian.”

— Dr. William Mahrt, CMAA President (2021)

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