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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

Articles

Jeff Ostrowski · July 20, 2016

PDF Download • St. Cecilia Hymnal (1937)

Like all the books we release, this extremely rare hymnal was previously unavailable until we scanned and uploaded it.

Dr. Lucas Tappan · July 19, 2016

Ad Orientem and Sacred Music

Father told me that he felt extremely awkward standing in the sanctuary for two minutes while the congregation did nothing but look at him.

Andrew Leung · July 18, 2016

“I Desire Mercy, Not Sacrifice”

How can we renew the liturgy with charity? We shouldn’t seek to win arguments on the liturgy.

Jeff Ostrowski · July 17, 2016

Showdown in Arkansas over “Ad Orientem”

The Bishop of Little Rock has sent a letter (14 July 2016) forbidding his priests to celebrate Mass “ad orientem.”

Fr. David Friel · July 17, 2016

Are the Readings at Mass Meant to Be Didactic or Doxological?

Reflections from the Fota IX International Liturgy Conference

Jeff Ostrowski · July 16, 2016

Musical Resources • 9th Sunday after Pentecost

“…and that Thou mayest grant their desires to them, make them ask only for things that please Thee…”

Richard J. Clark · July 15, 2016

The Illusion of Privacy • Social Media Etiquette for Liturgical Musicians

A very wise and compassionate Jesuit priest kindly exhorted me to avoid writing such missives. I quickly heeded his advice. So should you. Here’s why:

Richard J. Clark · July 15, 2016

Letter from USCCB Committee on Divine Worship on “Ad Orientem”

Most Rev’d Serratelli says the current rubrics “reflect the real possibility that the celebrant might be facing away from the assembly.”

Corpus Christi Watershed · July 15, 2016

Photograph • Robert Cardinal Sarah “Ad Orientem”

“Dear Fathers, we should listen to the lament of God proclaimed by the prophet Jeremiah: «They have turned their back to me» (2:27). Let us turn again towards the Lord!”

Andrew Leung · July 14, 2016

Three False Ideas about “Ad Orientem” Celebration

Three common misconceptions about the Mass and “ad orientem” worship.

Jeff Ostrowski · July 13, 2016

Shocking Developments From Westminster

If Cardinal Nichols had simply sent a letter saying why he prefers “versus populum,” I believe that would have been a better choice.

Jeff Ostrowski · July 13, 2016

SATB “Agnus Dei” after Fr. Gregorio Allegri (d. 1652)

Without question, the most popular piece I ever “wrote.”

Jeff Ostrowski · July 12, 2016

Did Fr. Lombardi Contradict Cardinal Sarah?

Perhaps a better phrase would be Bishop Gracida’s version: “Renewal of the Renewal.”

Corpus Christi Watershed · July 11, 2016

The Vatican Has Already Responded To Cardinal Nichols Regarding “Ad Orientem”

“No preference is expressed in the liturgical legislation for either position.”

Jeff Ostrowski · July 9, 2016

“Quam Singulari” • Decree on First Communion (1910)

Pope St. Pius X wanted this decree to be read each year from the pulpit by all Catholic priests.

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Corpus Christi Watershed

President’s Corner

    2-Voice Arrangement for Lent
    Those seeking a two-voice arrangement for LENT and PASSIONTIDE should click here and scroll down. It’s based on number 775 in the Brébeuf Hymnal, with an enchanting melody written by Kevin Allen (the legendary American composer of sacred music). That text—“Pendens In Crucis Cornibus”—is often used for the Feast of our Lady of Sorrows. That link is important because, in addition to the musical score, it provides free rehearsal videos for each individual voice: something volunteer choirs appreciate!
    —Jeff Ostrowski
    “Sanctus VIII” • Organ Accompaniment
    A few days ago, I composed this organ harmonization for SANCTUS VIII. This Mass is traditionally called Missa de ángelis or “Mass of the angels.” In French, it is Messe de Anges. You can evaluate my attempt to simultaneously accompany myself on the pipe organ (click here) while singing the melody. My parish is currently singing this setting.
    —Jeff Ostrowski
    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

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

“Eucharistic Prayer II, on account of its particular features, is more appropriately used on weekdays or in special circumstances.”

— §365 from the “General Instruction for the Roman Missal”

Recent Posts

  • 2-Voice Arrangement for Lent
  • Pope Paul VI • “Sacrificium Laudis” (15 Aug 1966)
  • “Sanctus VIII” • Organ Accompaniment
  • PDF Download • Sanctus VIII Organ Accompaniment (“Mass of the Angels”)
  • Gorgeous Image of Monks Singing!

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