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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

Patrick Williams · August 8, 2023

Gregorian Offertory • “Exaltabo te Domine”

Eleventh Sunday after Pentecost, Seventeenth Sunday in Ordinary Time, Ash Wednesday

Jeff Ostrowski · August 7, 2023

PDF Booklet • 25 Pages!

As of a few minutes ago, you may go here to download the organ accompaniment booklet (25 pages) I created for the feast of the TRANSFIGURATION. Obviously, that feast will not take place for another year. Nevertheless, several techniques I used may be of interest to those who create liturgical booklets.

Jeff Ostrowski · August 1, 2023

Summer Singers’ Repertoire!

I mentioned a 3-Voice Setting of the AGNUS DEI, based on a Canon by William Byrd (d. 1623) in the context of the “hairpin” technique, something I really will emphasize this coming season. The piece is for Soprano, Middle, and Baritone. (The “Middle” voice should ideally be a mixture of women and men.) Recently, we […]

Jeff Ostrowski · July 27, 2023

Did You See This? (27 July 2023)

In case anybody missed it, we recently updated our editorial policy. Our website continues to grow in popularity—Deo gratias! Therefore, it seemed appropriate to ‘codify’ what we’ve been doing for the last few years.

Jeff Ostrowski · July 26, 2023

Know Anybody Famous?

It’s really humbling—and also very cool—to come across examples of how acclaimed several of my colleagues are. I was doing some research for a recent post and came across (!) one of our contributors in a place I was not expecting. You can see which one if you click here and scroll towards the middle […]

Jeff Ostrowski · July 23, 2023

What Charles Weaver Did (!)

Dr. Weaver kindly made me aware of something stupendous. Created by Abbat Pothier’s assistant and approved by his successor (about ten years after his death), it’s a KYRIALE, GRADUALE, and VESPERALE: 2,000 pages long! It’s in Gregorian notation on five staves and marks each mora vocis. Here’s a photograph of the “Puer Natus” INTROIT taken with my […]

Dr. Charles Weaver · July 22, 2023

An Interview with Bruno de Labriolle

Readers interested in different stylistic approaches to Gregorian chant may enjoy this interview with the singer Bruno de Labriolle, who directs the schola of Saint-Bruno-des-Chartreux in Lyon. The views on chant and liturgy aired in the interview aren’t exactly the same as those of any of our contributors, but I personally find this group’s performances, in […]

Jeff Ostrowski · July 20, 2023

More Than A Chart!

I’ve received many compliments about a comparison chart which was part of a recent article I posted. I feel flattered by these kind words, but I would like to point out that my chart doesn’t make much sense unless one reads the entire article.

Jeff Ostrowski · July 19, 2023

Fancy, no?

We have updated our donate by check window. Pretty fancy, no? When possible, we try to do things in an “artistic” way.

Jeff Ostrowski · July 11, 2023

Desperate Plea from Jeff Ostrowski

The president of Corpus Christi Watershed has made another urgent appeal. It was released on TUESDAY, 11 July 2023. Thank you for your consideration, your generosity, and your love!

Jeff Ostrowski · June 30, 2023

“Counter-Melody” for a Hymn Tune…

Jeff Ostrowski has added a “counter-melody” to CUPERTINO, a hymn tune composed by Kevin Allen. You can download the Organist Score (PDF), which doubles as the vocalist score. You can also hear Jeff’s volunteer choir sing that “counter-melody” version in real life by clicking here.

Jeff Ostrowski · June 19, 2023

Easter Sequence • “Both English and Latin”

Earlier this afternoon, I created an organ harmonization for the EASTER SUNDAY SEQUENCE: Víctimæ Pascháli Laudes in English and Latin. The rhythm conforms to the pure (“untouched”) Vatican Edition, like what you’d find in editions by Schwann, Monsignor Nekes, Max Springer of Beuron, and Peter Wagner (Commissionis Pontificiæ Gregorianæ Membrum). The beautiful and highly accurate […]

Jeff Ostrowski · June 18, 2023

Theological…

The 330-page booklet for Sacred Music Symposium contains more than just fabulous and inspiring music. Little theological ‘tidbits’ cover its pages. For example, consider Page 265. You can download a PDF copy of the entire booklet at the Symposium website.

Jeff Ostrowski · May 27, 2023

PDF • “For General Use Until Advent”

If you conduct a volunteer choir, you might consider using this Simple Piece #40273 (“Adésto Sáncta Trínitas”) which can be used during the rest of the liturgical season until Advent. It’s based on the well known hymn tune: OLD HUNDREDTH. Rehearsal videos are available at #40691. A live recording of #40273 (“Adésto Sáncta Trínitas”) by […]

Jeff Ostrowski · May 19, 2023

Introit • (This Coming Sunday)

Our volunteer choir appreciates training videos, so here’s my attempt at recording “Exáudi Dómine Vocem Meam,” which is the INTROIT for this coming Sunday. This coming Sunday is Dominica Post Ascensionem (“Sunday after the feast of the Ascension”). It is sung according to the official rhythm of the Catholic Church.

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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

There is a lack of that kind of organization which favors mature judgment. Move on, move on, get it out. Schemata are multiplied without ever arriving at a considered form. The system of discussion is bad … Often the schemata arrive just before the discussions. Sometimes, and in important matters, such as the new anaphoras, the schema was distributed the evening before the discussion was to take place … Father Bugnini has only one interest: press ahead and finish.

— Cardinal Antonelli (Peritus during the Second Vatican Council)

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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