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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

Father Friel • Article Archive

Ordained in 2011, Father Friel served as Parochial Vicar at Saint Anselm Church in Northeast Philly before earning a doctorate in liturgical theology at The Catholic University of America. He presently serves as Vocation Director for the Archdiocese of Philadelphia.—(Read full biography).

Fr. David Friel · July 4, 2014

Colloquium Update II

Resources for Accompanying Gregorian Chant

Fr. David Friel · July 3, 2014

Colloquium Update I

All the things I love about the Colloquium experience are here in force: an extraordinary faculty, magnificent liturgies, good fellowship, etc.

Fr. David Friel · June 29, 2014

Strong with God’s Strength

Saints Peter & Paul

Fr. David Friel · June 22, 2014

Archbishop Sample’s Letter On Sacred Music (7 of 8)

May the Archbishop’s reflections & exhortations bear fruit in practical renewal!

Fr. David Friel · June 15, 2014

Gregory the Great Academy

An Interview with Matt Williams

Fr. David Friel · June 8, 2014

Pentecost: Babel, Tongues, & Latin

Do churchgoers of my generation—who, largely, have no experience of Latin in the liturgy at all—even recognize the gift that has been lost?

Fr. David Friel · June 1, 2014

Liturgy & Clericalism

Love of liturgy—and, specifically, employment of its traditional forms—is not clericalism.

Fr. David Friel · May 29, 2014

Living for Heaven

The Ascension as Our Model

Fr. David Friel · May 25, 2014

150 Years of Sacred Music

A Philadelphia History

Fr. David Friel · May 18, 2014

Collected Works of Joseph Ratzinger

Beginning with Liturgy

Fr. David Friel · May 11, 2014

Does a Liberal Arts Education Have Any Value?

Without the visual arts, music, theater, architecture, and the like, future generations will have no sense of culture.

Fr. David Friel · May 4, 2014

Parish May Crownings

A strong devotional life in the parish church will naturally support and strengthen its liturgical vitality.

Fr. David Friel · April 27, 2014

The Mercy of God Makes Saints

Unmasking the Media’s Mythical Divide Between Popes

Fr. David Friel · April 20, 2014

Book Review: Killing Jesus

Was It Worth the Read?

Fr. David Friel · April 17, 2014

A Priest’s Litany of Thanksgiving

A Preparation for the Celebration of Holy Thursday

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Corpus Christi Watershed

President’s Corner

    “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
    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

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 are no hymns, in this sense, till the fourth century; they were not admitted to the Roman office till the twelfth. No Eastern rite to this day knows this kind of hymn. Indeed, in our Roman rite we still have the archaic offices of the last days of Holy Week and of the Easter octave, which—just because they are archaic—have no hymns.”

— Adrian Fortescue (25 March 1916)

Recent Posts

  • “Sanctus VIII” • Organ Accompaniment
  • PDF Download • Sanctus VIII Organ Accompaniment (“Mass of the Angels”)
  • Gorgeous Image of Monks Singing!
  • “Let the Choir Have a Voice” • Jeff Ostrowski’s Essay on Choral Music in the Catholic Mass
  • Solfege Volleyball: A Children’s Choir Game

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