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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 · March 1, 2024

“Simplified” Keyboard Accompaniment

Are you an inexperienced organist? Were you formally a pianist? I invite you to download this simplified organ accompaniment for hymn #124 in the Saint Jean de Brébeuf Hymnal. I’m toying with the idea of creating a whole bunch of these, to benefit amateur organists. What is your opinion of such a project? Let me […]

Jeff Ostrowski · February 15, 2024

Offered in a Spirit of Dialogue

Pope Francis said famously: “To dialogue entails a cordial reception, not a prior condemnation.” The following brief utterances of mine are offered in that spirit. Pope Saint Pius X called the sacred liturgy “the primary and indispensable source of the true Christian spirit.” If the reformers had told the fathers of Vatican II they desired […]

Jeff Ostrowski · February 14, 2024

Polyphony For Three Voices!

Writing excellent music is easier in four voices than three. We often sing from MATRI DIVINAE GRATIAE, a 3-voice collection by Kevin Allen for Soprano, Alto, and Bass. Someone made a recording of my volunteer choir singing “Si Ambulávero” (from that collection). This “raw recording” starts toward the end of the psalm tone then launches […]

Jeff Ostrowski · February 10, 2024

PDF Download • “Chant Chart”

A thoughtful priest from another country wrote me a magnificent message praising a PDF comparison chart I recently posted. It deals with “staffless” CARMEN GREGORIANUM (Gregorian Chant). Download it for free by scrolling to the bottom of this article. Of course, I hope you will read the article instead of just scrolling past it.

Jeff Ostrowski · February 7, 2024

“Somber Song!” • Sexagesima Sunday

As we approach the holy season of Lent, the prayers and readings become more lengthy. When we arrive at Easter, the prayers and readings will become extremely brief. As we get closer to Lent, some of the music becomes quite somber. I can’t think of a more somber piece than the INTROIT for Sexagesima Sunday. […]

Jeff Ostrowski · January 27, 2024

“Saint Mark” • Hymn Tune

Regarding the hymn tune called “ST MARK”—have you ever heard or sung this? If you scroll towards the bottom of this recent article, you can hear my choir (which is made up 100% of volunteers) singing it. Some people say the ST MARK melody sounds a little ‘protestant.’ What do you think? I rather like […]

Jeff Ostrowski · January 24, 2024

“Seeking Employment” • Please help!

You can download my official résumé.

Jeff Ostrowski · January 18, 2024

Gregorian Chant … with a drone?

It’s possible to sing Carmen Gregorianum with a drone note (a.k.a. “ison”) but is this always a good idea? I’ve heard it done very poorly. We tried singing GLORIA IX with an ison last Sunday. Feel free to listen to this excerpt (Mp3) and let me know your thoughts.

Jeff Ostrowski · January 18, 2024

Abbat Pothier on Gregorian Chant

“There is, then, in the Church, in the Catholic liturgy, a music that, as we have just stated, is both a word and a song, a music rich and powerful, although simple and natural, a music that is not self-seeking, which does not attend to itself but comes forth as the spontaneous utterance of religious […]

Jeff Ostrowski · January 12, 2024

Organ Accompaniment Booklet (25 pages)

Those who celebrate VESPERS each week may wish to download my organ accompaniment booklet (25 pages) for the 2nd Sunday after Epiphany. This was originally released about a year ago (link), but minor improvements have been made.

Jeff Ostrowski · January 11, 2024

Know your hymns? How Well?

Several singers from my choir recently recorded this beautiful hymn (Mp3), using famous lyrics from the Brébeuf Hymnal. How well do you know your hymns? Can you name that tune? If so, please email us. If you correctly name that tune, I’ll declare: “You really know your hymns!”

Jeff Ostrowski · January 8, 2024

Organ? Or SATB unaccompanied?

Pipe organ (with voices) or unaccompanied SATB? Which do you prefer? Yesterday at Mass, my volunteer choir gave you an opportunity to compare “apples to apples.” Simply click here and compare the first verse with the second. For the record, that melody is called by various names: ALTONA, VOM HIMMEL HOCH, ERFURT, and so on.

Jeff Ostrowski · January 8, 2024

Simple “Salve Regina” • Its Origins

In the past, I have attempted to determine the origins of the “simple” Salve Regina chant. When it comes to the so-called “restored” plainsong books, the earliest instance I can find (of the simple version) is in the LIBER RESPONSORIALIS, published in 1895, a marvelous book based upon the groundbreaking research of Dom Joseph Pothier. […]

Jeff Ostrowski · January 3, 2024

Do You Recognize This “Christmas” Tune?

Over the last 70 years, ST VENANTIUS has fallen out of favor. One reason might be that many harmonizations of it are “chunky.” I was pleased to see the Brébeuf Hymnal adopted the harmonization by Dom Gregory Murray (probably the finest ever created for ST VENANTIUS). This morning, I created this pipe organ recording. The […]

Jeff Ostrowski · December 31, 2023

PDF • January 1st (Organ Accomp. Booklet)

Anyone who wishes to may download the Organ Accompaniment Booklet (22 pages) I created for FIRST VESPERS of January 1st. That feast has various names, including “In Octava Nativitatis Domini.” These organ accompaniment booklets take forever to make!

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Corpus Christi Watershed

President’s Corner

    Music List • (5th Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 5th Sunday of Lent (22 March 2026). If such a thing interests you, feel free to download it as a PDF file. Traditionally, this Sunday was called ‘Passion’ Sunday. Starting in 1956, certain church leaders attempted rename both ‘Passion’ Sunday and ‘Palm’ Sunday—but it didn’t work. For example, Monsignor Frederick McManus tried to get people to call PALM SUNDAY “Second Passion Sunday”—but the faithful rejected that. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    Music List • (Holy Thursday, 2026)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for Holy Thursday, which is 2 April 2026. If such a thing interests you, feel free to download it as a PDF file. I’m not sure I’ve ever heard a more piercingly beautiful INTROIT, and I have come to absolutely love the SATB version of ‘Ubi cáritas’ we are singing (joined by our burgeoning children’s choir). I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    “O Escam Viatorum” • (Holy Thursday)
    When I was very young, I erroneously believed the four psalms provided by the 1957 Liber Usualis—for Communion on Holy Thursday—were the “correct” music to sing on that first day of the TRIDUUM SACRUM. Those four psalms are: Psalm 22 (Dóminus regit me et nihil mihi déerit); Psalm 71 (Deus judícium tuum regi da); Psalm 103 (Bénedic ánima méa); and Psalm 150 (Laudáte Dóminum in sanctis ejus). It turns out I was way out in left field! While nothing forbids singing those psalms, many other options are equally valid. Our volunteer parish choir will sing this COMMUNION PIECE (joined by our burgeoning children’s choir) on Holy Thursday during Holy Communion. Needless to say, this will happen after the proper antiphon from the GRADUALE ROMANUM has been sung.
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Ubi Caritas” (SATB)
    I remember singing “Ubi Cáritas” by Maurice Duruflé at the conservatory. I was deeply moved by it. However, some feel Duruflé’s version isn’t suitable for small choirs since it’s written for 6 voices and the bass tessitura is quite low. That’s why I was absolutely thrilled to discover this “Ubi cáritas” (SATB) for smaller choirs by Énemond Moreau, who studied with OSCAR DEPUYDT (d. 1925), an orphan who became a towering figure of Catholic music. Depuydt’s students include: Flor Peeters (d. 1986); Monsignor Jules Van Nuffel (d. 1953); Arthur Meulemans (d. 1966); Monsignor Jules Vyverman (d. 1989); and Gustaaf Nees (d. 1965). Rehearsal videos for each individual voice await you at #19705. When I came across the astonishing English translation for “Ubi Cáritas” by Monsignor Ronald Knox—matching the Latin’s meter—I decided to add those lyrics as an option (for churches which have banned Latin). My wife and I made this recording to give you some idea how it sounds.
    —Jeff Ostrowski
    Stumped by “Episcopalian Hymnal” (1910)
    Some consider Songs of Syon (1910) the greatest Episcopalian hymnal ever printed. As a Roman Catholic, I have no right to weigh in one way or the other. However, this particular page has me stumped. I just know I’ve heard that tune somewhere! If you can help, please email me. I’m talking about the text which begins: “This is the day the Lord hath made; In unbeclouded light array’d.” The book is by George Ratcliffe Woodward, and its complete title is: Songs of Syon: A Collection of Psalms, Hymns, and Spiritual Songs. Back in 2016, Corpus Christi Watershed scanned and uploaded this insanely rare book. For years our website was the sole place one could download it as a PDF file.
    —Jeff Ostrowski
    PDF Download • “Holy, Holy, Holy”
    For vigil Masses on Saturday (a.k.a. “anticipated” Masses) we use this simpler setting of the “Holy, Holy, Holy” by Monsignor Jules Vyverman (d. 1989), a Belgian priest, organist, composer, and music educator who ultimately succeeded another ‘Jules’ (CANON JULES VAN NUFFEL) as director of the Lemmensinstituut in Belgium. Although I could be wrong, my understanding is that the LEMMENSINSTITUUT eventually merged with “Catholic University of Leuven” (originally founded in 1425). That’s the university Fulton J. Sheen attended.
    —Jeff Ostrowski

Random Quote

In the place of liturgy as the fruit of development came fabricated liturgy. We abandoned the organic, living process of growth and development over centuries, and replaced it—as in a manufacturing process—with a fabrication, a banal on-the-spot product.

— ‘Pope Benedict XVI, describing the postconciliar liturgical reforms’

Recent Posts

  • PDF Download • “Ubi Caritas” (SATB)
  • Summer 2026 • “Gregorian Chant Course” at Aquinas College (Nashville, TN)
  • Music List • (5th Sunday of Lent)
  • Music List • (Holy Thursday, 2026)
  • “O Escam Viatorum” • (Holy Thursday)

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