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Corpus Christi Watershed

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

President's Corner

Jeff Ostrowski · January 1, 2021

31 December 2020 • “COMITES CHRISTI”

The feasts for Saint Stephen Proto-Martyr (26 December), Saint John the Evangelist The Disciple Whom Jesus Loved (27 December), and the Feast of the Holy Innocents (28 December) seem untouched by any liturgical reforms. These are very powerful feasts—I believe they once possessed octaves—and I believe they could sometimes “overpower” a Sunday feast. The rules […]

Jeff Ostrowski · December 23, 2020

23 December 2020 • A 5th? or 4th?

I have noticed that where the Editio Vaticana has a descending perfect fourth for the Gradual of Christmas Midnight Mass, many ancient manuscripts have a descending perfect fifth, which is pretty cool: Example A — Example B. The Vatican Edition is a CENTO, and never made any claim to be anything other than a CENTO. […]

Jeff Ostrowski · December 10, 2020

“Martinelli’s Letter” (dated 18 February 1910)

My recent post on the repercussion has induced some to ask: “Can we just sing whatever rhythm we want for the Vatican Edition? What about mensuralism? What about Bonvin and Vollaerts?” For those of us who work in the Extraordinary Form, we must follow the rhythm of the Editio Vaticana, and this was addressed in […]

Jeff Ostrowski · December 9, 2020

9 December 2020 • A Cool Tradition

Before the reforms of the “Code of Rubrics” (1961), antiphons at Vespers were abbreviated in a cool way. For example, look at this antiphon, Ecce Veniet (from Vespers on the 4th Sunday of Advent). But that tradition—as far as I know—ended in 1961, with §191 which said: “The whole antiphon is always said before and […]

Jeff Ostrowski · November 30, 2020

30 November 2020 • “Case in point”

The Solesmes rhythmic markings, which often contradict the official rhythm, do such damage to the antiphons of the Divine Office that—in my humble opinion—they should be abandoned. (In reality, this will never happen.) But sometimes, they do great damage to the melody of the Graduale Romanum, and I would offer the Offertory for the 1st […]

Jeff Ostrowski · November 27, 2020

27 November 2020 • ACCENTS

Certain Latin words are constantly mispronounced. For example, Carl Orff’s Carmina Burana is supposed to be pronounced “Cármina” but people frequently pronounce it as “Carmína”—wrong! Another example: Nova organi harmonia is supposed to be pronounced “órgani” but many people erroneously say “orgáni.” A somewhat tricky word is incipit. In Latin, it would be “íncipit” while […]

Jeff Ostrowski · November 20, 2020

20 November 2020 • Epiphany Sequence?

A very interesting Missale from 1759AD has a Sequence for the Epiphany, but I don’t know where one could find the musical notation. The Seqence is called: “Prompto Gentes Animo Ferte Nunc Altissimo Honorem Et Gloriam.”

Jeff Ostrowski · November 19, 2020

18 November 2020 • FEEDBACK

From a priest in the Midwest: “That video by Andrea Leal which explains hymn meters and hymn text exchange is informative and a truly great explanation. Thank you for sending it to me. I hope all is well with you. God bless you as we soon enter into Advent.”

Jeff Ostrowski · November 16, 2020

16 November 2020 • Exciting addition!

By kind permission of the Trustees of the London Oratory, we have added Mæstro Patrick Russill’s outstanding organ accompaniment for “Salve Regina” to the other versions currently available for free PDF download. Patrick Russill needs no introduction among church musicians the world over, and many consider his harmonization the finest of all.

Jeff Ostrowski · November 6, 2020

6 November 2020 • FEEDBACK

The director of music at EWTN wrote to us about the Brébeuf hymnal: “I do believe your hymnal has the best harmonizations available. We have used several of your harmonizations on EWTN. I have recommended to other hymnal editors that they get aligned with Corpus Christi Watershed to improve their harmonizations. Take care.”

Jeff Ostrowski · November 6, 2020

Msgr. Schmitt backs up Rev. Fortescue

My colleague, Andrea Leal, recently posted something extraordinary: an English translation of a NOTITIAE document from 1970 which explains why the reformers did such violence to the ancient Proprium Missæ. The author of that document erroneously claims that Gregorian composers changed the wording for musical purposes, but the real reason Missal and Gradual don’t always […]

Jeff Ostrowski · November 6, 2020

“Polyphonic Credo” during Communion?

It sounds strange to Americans, but a very common European tradition is to sing a polyphonic “Agnus Dei” during the distribution of Holy Communion, famously defended by Cardinal Ratzinger in 1995. Monsignor Francis P. Schmitt wrote about visiting Saint Joseph Oratory in Montreal, and says: “A polyphonic Creed was sung during the distribution of Communion.” […]

Jeff Ostrowski · November 4, 2020

The Best We’ve Done?

Perhaps the most significant item we’ve yet had the honor of producing is an English translation of an extremely rare document from 1970. A member of the Consilium—Father Adalbert Franquesa Garrós—explains why the reformers felt it necessary to destroy most of the ancient Mass propers. In particular, this reformer priest claims that unless verses of […]

Jeff Ostrowski · October 29, 2020

PDF Download • Vespers for the Dead

Mr. Albert Bloomfield kindly sent me “Vespers for the Dead”—which does not fulfill a priest’s obligation to pray the Divine Office, yet is often prayed when a loved one dies. Here is formatting A, and here it is again with formatting B.

Jeff Ostrowski · October 21, 2020

20 October 2020 • “What we can’t share”

Almighty God has given to us the example of the Jesuit Martyrs of North America, whose feast day we celebrated yesterday. Of course, along with those eight martyrs we honor their associates, e.g Father François Bressani. I can’t share with you the torments Father Bressani underwent at the hands of Iroquois: it is too brutal. […]

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Corpus Christi Watershed

President’s Corner

    Music List • (5th Sund. Ordinary Time)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for this coming Sunday, 8 February 2026, which is the 5th Sunday in Ordinary Time (Year A). If such a thing interests you, feel free to download it as a PDF file. You will probably notice it isn’t as ‘complete’ or ‘spiffy’ as usual, owing to some difficulties which took place this week.
    —Jeff Ostrowski
    PDF • “Communion” (5th Sunday in Ordin.)
    The COMMUNION ANTIPHON for this coming Sunday, 8 February 2026—which is the 5th Sunday in Ordinary Time (Year A)—is truly delightful. You can download the musical score completely free of charge. This text will be familiar to altar boys, because it’s PSALM 42. The Feder Missal makes the following claim about that psalm: “A hymn of a temple musician from Jerusalem: he is an exile in a heathen land, and he longs for the holy city and his ministry in the Temple there. The Church makes his words her own.”
    —Jeff Ostrowski
    Funeral Music “Template” • For Families
    Many have requested the MUSICAL TEMPLATE for funerals we give to families at our parish. The family of the deceased is usually involved in selecting Number 12 on that sheet. This template was difficult to assemble, because the “Ordo Exsequiarum” has never been translated into English, and the assigned chants and hymns are given in different liturgical books (Lectionary, Gradual, Order of Christian Funerals, and so on). Please notify me if you spot errors or broken links. Readers will be particularly interested in some of the plainsong musical settings, which are truly haunting in their beauty.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of Febr. (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. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    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

“Perhaps he had too much sense of humour to be altogether a great man: he lacked pomposity.”

— Msgr. Ronald Knox writing about Father Adrian Fortescue

Recent Posts

  • Music List • (5th Sund. Ordinary Time)
  • PDF • “Communion” (5th Sunday in Ordin.)
  • “Pipe Organ Interlude During Funerals?” • (Reader Feedback)
  • Funeral Music “Template” • For Families
  • “To Cover Sin With Smooth Names”

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