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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

Jeff Ostrowski • Article Archive

A theorist, organist, and conductor, Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He completed studies in Education and Musicology at the graduate level. Having worked as a church musician in Los Angeles for ten years, in 2024 he accepted a position as choirmaster for Saint Mary of the Immaculate Conception in Michigan, where he resides with his wife and children. —Read full biography (with photographs).

Jeff Ostrowski · March 18, 2021

18 March 2021 • “Close To Death”

When it seemed Father Jean de Brébeuf and his companions were about to meet death on 28 October 1637, he wrote a letter to his superiors. Here’s an excerpt: “It is a singular favor that His Goodness gives us, to allow us to endure something for love of Him. Now it is that we consider […]

Jeff Ostrowski · March 17, 2021

PDF Download • My Favorite Gregorian Hymn

There are so many wonderful Gregorian hymns, but the “HYMN TO SAINT JOSEPH” is my favorite.

Jeff Ostrowski · March 16, 2021

Three Radical Liturgical Changes • (Pope Pius XII)

I love Venerable Pius XII very much, but this particular change was unconscionable.

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Jeff Ostrowski · March 15, 2021

Singers • High or Low?

I consider myself a “flexible” choirmaster. When I sing with men who have low voices, I join with them at a low pitch. Here’s an excerpt from yesterday, which was LAETARE SUNDAY (the 4th Sunday of Lent). Later that same day, I sang at another Mass with a singer who has a very high voice. […]

Jeff Ostrowski · March 15, 2021

15 March 2021 • Lætare Compliment!

I agree with Keven Smith that Covid-19 has been a huge boon to my skills of improvisation on the organ. I wanted to share this amazing email (which gave me such joy), sent to me by somebody I don’t know: “My name is —— and I attended the 7:00pm Mass today at St Vitus. The […]

Jeff Ostrowski · March 14, 2021

PDF Download • “O Sacred Head Surrounded” — Twelve Organ Accompaniments

You can’t have too many harmonizations of this piece!

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Jeff Ostrowski · March 12, 2021

11 March 2021 • From Last Sunday…

Like everyone else, we are struggling under the Covid-19 restrictions. The number of singers we’re allowed have has been reduced in a severe way. But we charge forward, trusting in God. Here is a 50-second live excerpt from Mass last Sunday here in Los Angeles. Not many voices, but still beautiful (in my humble opinion).

Jeff Ostrowski · March 12, 2021

Re: Music For Two Voices • “Jam Christe Sol Justitiæ”

Here’s something we tried recently, and I’d be grateful to hear your feedback.

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Jeff Ostrowski · March 11, 2021

“Extra” Offertory & Communion Verses in the Saint Edmund Campion Missal (3rd Edition)

Sophia Institute Press has authorized us to release marvelous secrets about the 3rd edition!

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Jeff Ostrowski · March 7, 2021

A Beautiful Lenten Hymn • “How It Sounds”

People were asking how it sounds…so here’s a live recording from last week.

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Jeff Ostrowski · March 5, 2021

4 March 2021 • Can you spare 15 seconds?

Due to Covid-19, California has basically been under “lock down” for 11 months, and these restrictions have had quite a detrimental effect on choral programs. We are frequently limited to just 2-3 singers, on account of regulations by the government and our Archdiocese. However, although the number of singers is quite small, I was struck […]

Jeff Ostrowski · March 4, 2021

Now Online! • “Missale Romanum” (1615 edition)

How ironic that this is being hosted by the Martin Luther University!

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Jeff Ostrowski · March 3, 2021

“Ash Wednesday” • Banned by YouTube after 93,000 Views!

Hurry up! — Download this video before it gets deleted again!

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Jeff Ostrowski · March 3, 2021

3 March 2021 • “A policeman” — really?

According to Monsignor Frederick R. McManus, there were “policemen” serving the Sanhedrin in the time of Our Blessed Lord. Look at this awful translation in the 1966 “Saint Andrew Bible Missal” from 1966. Yuck!

Jeff Ostrowski · February 28, 2021

(Screenshots) • Proving Holy Saturday Took Place In The Morning

Five reasons keeping Holy Saturday in the morning is a good idea.

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Corpus Christi Watershed

President’s Corner

    💲 5.00 💵
    Our tiny 501(c)3 nonprofit organization exists solely by generous readers who donate $5.00 per month. We have no endowment; we have no major donors; we run no advertisements; we have no savings. A donor wrote to us: “I so appreciate all you do and have done, and your generosity is unprecedented. I am honored to be able to make a monthly contribution.” Another monthly donor says: “Thank you for everything CC Watershed does. We are able to add so much solemnity to Holy Mass due to the resources made available here.” Can you spare a few dollars each month to help us survive?
    —Corpus Christi Watershed
    Dom Pothier • Photo from 1904
    Dom Paul Cagin, in a 1904 publication (L’oeuvre de Solesmes dans la restauration du chant grégorien) made sure to include a beautiful image of Dom Pothier, the legendary abbot of St-Wandrille. Also shown is a very young Dom André Mocquereau. Auguste Pécoul—considered the spiritual “son” of Abbat Prosper Guéranger of Solesmes—wrote as follows on 24 June 1901: “To forestall any confusion, let us remember that there is just one Gregorian notation—that restored, according to the ancient manuscripts, by the eminent Abbot of Saint-Wandrille, Dom Pothier.” ✠
    —Jeff Ostrowski
    PDF • “3-Voice Motet” (Father De Laet)
    I believe 99% of our readers will recognize this hymn tune. Perhaps Father Edgard De Laet should have called it a ‘hymn’ instead of a ‘motet for three voices’—but he’s technically correct, since MOTET is defined as: “a short piece of sacred choral music, typically polyphonic and unaccompanied.” The even verses are for three voices, as you will see if you download the PDF score at #20245. The odd verses may be song a cappella SATB or unison with organ.
    —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

“This chapter hereby extends the prohibition of 13 June 1561 against loaning singers or instrumentalists on any account whatsoever to include even the humblest choirboy.” [From “The Life of Father Francisco Guerrero.”]

— Sevilla: Chapter Resolution (10 June 1562)

Recent Posts

  • “Reminder” — Month of Febr. (2026)
  • Seminary Music Directors Gather in Houston
  • 💲 5.00 💵
  • Dom Pothier • Photo from 1904
  • PDF Chart • “Plainsong Rhythm”

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