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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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Saint Antoine Daniel Kyriale (Website)

Saint Antoine Daniel Kyriale (Website)

Please note: The Père Daniel Booklet may be purchased or downloaded.

Sprinkling with Holy Water • Immediately before Mass
Asperges Me  •  Score (PDF)  •  Mp3   •   Video   •   Organ Accompaniment (PDF)
Vidi Aquam  •  Score (PDF)  •  Mp3   •   YouTube   •   Organ Accompaniment (PDF)

Mass I • Lux et origo    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  YouTube (2)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  YouTube (2)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  YouTube (2)  •  Mp3 (a)  •  Mp3 (b)

Mass II • Kyrie fons bonitatis    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  YouTube (2)  •  Mp3 (a)
Here’s Kyrie II sung by two female cantors
Here’s Kyrie II sung by a Volunteer Choir
Here’s Kyrie II sung by a small group of ladies
Gloria  •  Score (PDF)  •  Organist (PDF)  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  YouTube (2)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  YouTube (2)  •  Mp3 (a)

Mass III • Kyrie Deus sempiterne    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  YouTube (1)  •  Mp3 (a)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  YouTube (2)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  YouTube (2)  •  Mp3 (a)  •  Mp3 (b)

Gloria iii according to the official rhythm.

Mass IV • Cunctipotens Genitor Deus    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)
Kyrie IV (organist markings of Solesmes)
With Official Rhythm (Vocalist is page 2)
YouTube (1) • YouTube (2)
Mp3 (1 of 3)  •  Mp3 (2 of 3)  •  Mp3 (3 of 3)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)

Agnus IV harmonization by Jeff Ostrowski—8 November 2025

Mass V • Kyrie magnæ Deus potentiæ    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)

Mass VI • Kyrie Rex Genitor    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)

Mass VII • Kyrie Rex splendens    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)

Mass VIII • De Angelis    Complete Score (PDF)    * 13 different organ accompaniments (URL)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
MFlor Peeters Accompaniment to Kyrie VIII
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Here’s Sanctus VIII sung by two female cantors
Sanctus VIII: (Organ Accompaniment by Jeff Ostrowski)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
M Kyrie VIII in a Live Recording
M Jeff Ostrowski accompanies Kyrie VIII on the pipe organ (Live Recording)

Mass IX • Cum jubilo    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Color  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
 Live Recording of Gloria IX by Women
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)

Mass X • Alme Pater    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)

Mass XI • Orbis factor    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  YouTube  •  Mp3 (a)  •  Mp3 (b)
M Live Recording of Kyrie 11 • Kyrie XI conducted by Rachel Aldridge
Live Recording (Novus Ordo, 25 May 2025)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)

KYRIE 11 (“Orbis Factor”) for the Novus Ordo
Organ Score and Vocalist Score

Mass XII • Pater cuncta    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)

Mass XIII • Stelliferi conditor orbis    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Org  •  Color  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)

Mass XIV • Jesu redemptor    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)

Mass XV • Dominator Deus    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Gloria  •  Score (PDF)  •  Organist (PDF)  •  YouTube (1)  •  Mp3 (a)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  YouTube (1)  •  Mp3 (a)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  YouTube (1)  •  Mp3 (a)

Organ Accompaniment for Gloria XV in Spanish.

Mass XVI • In feriis per annum    Complete Score (PDF)
Kyrie  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)

*  PDF Download • KYRIE XVI (organ accompaniment)

Mass XVII • Advent & Lent    Complete Score (PDF)
Kyrie A •  Score (PDF)  •  Organist (PDF)  •  Video  •  Mp3 (a)  •  Mp3 (b) • Mp3 (c)
Kyrie B •  Score (PDF)  •  Organist (PDF)  •  YouTube  •  Mp3 (a)  •  Mp3 (b)  •  Mp3 (c)
Live Recording • Kyrie For Advent and Lent
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)
(Live) • Mp3 (a) • Mp3 (b)  •  Mp3 (c)
Agnus  •  Score (PDF)  •  Organist (PDF)  •  Video  •  YouTube (1)  •  Mp3 (a)  •  Mp3 (b)

Kyrie for Advent and Lent (“Novus Ordo” — i.e. 6 invocations)

Mass XVIII • Deus Genitor alme    Complete Score (PDF)
Kyrie A •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Kyrie B (Requiem) •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Sanctus  •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)
Agnus A •  Score (PDF)  •  Organist (PDF)  •  Video  •  Mp3 (a)
Agnus B (Requiem) •  Score (PDF)  •  Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)

* 24996 Organ Accompaniment for Sanctus XVIII (official rhythm)

Mass XVIII • Sanctus (Organ Accompaniment)

Mass XVIII • Agnus Dei (Organ Accompaniment)

Credo I    Score (PDF)
Mp3 (a)  •  Mp3 (b)

Credo II    Score (PDF)
Mp3 (a)

Credo III    Score (PDF)
Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)  •  Mp3 (c)

Credo IV    Score (PDF)   •   Modern w/ English   •   Gregorian w/ English
Organist (PDF)  •  Mp3 (a)  •  Mp3 (b)  • (Live) • Mp3 (d)
Live Recording (7 May 2023): https://ccwatershed.org/40668/

*** Print off Credo IV on 2 pages (No English)

Credo V    Score (PDF)
Organist (PDF)  •  Mp3 (a)

Credo VI    Score (PDF)
Mp3 (a)

Credo VII    PDF score • Credo VII (#82879)
Organist (PDF)  •  YouTube Recording

Additional Optional Kyrie • Ad Libitum
KYRIE I: Clemens Rector  •  Score (PDF)  •  Mp3 (a)  •  Mp3 (b)  •  Organist (PDF)
KYRIE II: Summe Deus  •  Score (PDF)  •  Mp3 (a)
KYRIE III: Rector cosmi pie  •  Score (PDF)  •  Mp3 (a)
KYRIE IV: Kyrie altissime  •  Score (PDF)  •  Mp3 (a)
KYRIE V: Conditor Kyrie omnium  •  Score (PDF)  •  Mp3 (a)
KYRIE VI: Te Christe Rex supplices  •  Score (PDF)  •  Mp3 (a)  •  Mp3 (b)
KYRIE VII: Splendor aeterne  •  Score (PDF)  •  Mp3 (a)  •  Mp3 (b)
KYRIE VIII: Firmator sancte  •  Score (PDF)  •  Mp3 (a)  •  Mp3 (b)
KYRIE IX: O Pater excelse  •  Score (PDF)  •  Mp3 (a)
KYRIE X: Orbis Factor (ad libitum)  •  Score (PDF)  •  Mp3 (a)
KYRIE XI: Kyrie Salve  •  Score (PDF)  •  Mp3 (a)  •  Video  •  YouTube

Additional Optional Gloria • Ad Libitum
GLORIA I:  •  Score (PDF)  •  Mp3 (a)
GLORIA II:  •  Score (PDF)  •  Mp3 (a)
GLORIA III:  •  Score (PDF)  •  Mp3 (a)  •  Mp3 (b)
GLORIA IV: Ambrosian Melody  •  Score (PDF)  •  Mp3 (a)  •  Mp3 (b)

Additional Optional Sanctus • Ad Libitum
SANCTUS I:  •  Score (PDF)  •  Mp3 (a)
SANCTUS II:  •  Score (PDF)  •  Mp3 (a)
SANCTUS III:  •  Score (PDF)  •  Mp3 (a)  •  Organist (PDF)

Additional Optional Agnus Dei • Ad Libitum
Agnus Dei I:  •  Score (PDF)  •  Mp3 (a)
Agnus Dei II:  •  Score (PDF)  •  Mp3 (a)

The St. Antoine Daniel website was launched in 2009 and has since received many millions of visitors.  The original website looked like this.

*  PDF Download • AGNUS DEI (In honor of Saint René Goupil)
—Some have called this “the simplest setting ever composed.”

HEARTILY RECOMMEND this site for Catholics who want to experience some of the grand music of our rich heritage. Many of us find much of today’s music lacking in beauty and reverence. This site will introduce you to some of the great Catholic music of the past which is being recovered at long last.

—Archbishop James P. Keleher • Kansas City, Kansas

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Corpus Christi Watershed

President’s Corner

    PDF Download • “For Pentecost Sunday”
    Yesterday morning, I recorded myself singing the ENTRANCE CHANT for Pentecost Sunday while simultaneously accompanying myself on the pipe organ. Click here to see how that came out. At the end of the antiphon, there’s a triple Allelúja and I just love the chord at the end of the 2nd iteration. The organ accompaniment—along with the musical score for singers—can be downloaded free of charge at the flourishing feasts website. For the record, the antiphon on Pentecost Sunday doesn’t come from a psalm; it comes from the book of Wisdom.
    —Jeff Ostrowski
    PDF Download • “Organ Accompaniment”
    Over the past few years, I’ve been harmonizing all the vernacular plainsong Introit settings by the CHAUMONOT COMPOSERS GROUP. This coming Sunday—10 May 2026—is the 6th Sunday of Easter (Year A). The following declaration will probably smack of “blowing my own horn.” However, I’d rank this accompaniment as my best yet. In this rehearsal video, I attempt to sing it while simultaneously accompanying myself on the pipe organ. The musical score [for singers] as well as my organ accompaniment can be downloaded free of charge from the flourishing feasts website.
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 4 May 2026
    A few days ago, the CORPUS CHRISTI WATERSHED Facebook page posted this Gregorian Chant quiz regarding a rubric for the SEQUENCE for the feast of Corpus Christi: “Lauda Sion Salvatórem.” There is no audience more intelligent than ours—yet surprisingly nobody has been able to guess the rubric. Drop me an email with the right answer, and I’ll affirm your brilliance to everyone I encounter!
    —Jeff Ostrowski

Quick Thoughts

    “Thee” + “Thou” + “Thine”
    Few musicians realize that various English translations of Sacred Scripture were granted formal approval by the USCCB and the Vatican for liturgical use in the United States of America. But don’t take my word for it! Here are four documents proving this, which you can examine with your own eyes. Some believe the words “Thine” and “Thou” and “Thee” were forbidden after Vatican II—but that’s incorrect. For example, they’re found in the English translation of the ‘Our Father’ at Mass. Moreover, the Revised Standard Version (Catholic Edition) mentioned in those four documents employs “Thine” and “Thou” and “Thee.” It was published with a FOREWORD by Westminster’s Roman Catholic Archbishop (John Cardinal Heenan).
    —Jeff Ostrowski
    “Reminder” — Month of May (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
    Simplified Version • “Canon in D” (Pachelbel)
    I published an article on 11 November 2023 called Wedding March For The Lazy Organist, which rather offhandedly made reference to a simplified version I created in 2007 for Pachelbel’s Canon. I often use it as a PROCESSIONAL for weddings and quinceañeras. Many organists say they “hate” Pachelbel’s Canon. But I love it. I think it’s bright and beautiful. I created that ‘simplified version’ for musicians coming to grips with playing the pipe organ. It can be downloaded as a free PDF if you visit Andrea Leal’s article dated 15 August 2022: Manuals Only: Organ Interludes Based on Plainsong. Specifically, it is page 84 in that collection—generously offered as a free PDF download. Johann Pachelbel (d. 1706) was a renowned German organist, violinist, teacher, and composer of over 500 works. A friend of Bach’s family, he taught Johann Christoph Bach (Sebastian Bach’s eldest brother) and lived in his house. Those who read Pachelbel’s biography will notice his connection to two German cities adopted as famous hymn tune names: EISENACH and ERFURT.
    —Jeff Ostrowski

Random Quote

Giovanni Doni is known for having changed the name of note “Ut,” renaming it “Do.” He convinced his contemporaries to make the change by arguing that 1) “Do” is easier to pronounce than “Ut,” and 2) “Do” is an abbreviation for “Dominus,” the Latin word for the Lord, Who is the tonic and root of the world. There is much academic speculation that Giovanni Doni also wanted to imprint himself into musical canon in perpetuity because “Do” is also ulteriorly an abbreviation for his family name.

— Giovanni Battista Doni died in 1647AD

Recent Posts

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  • Entrance Chant • Before or After Opening Hymn?
  • “Unfair Characterization” • (But Good Question)
  • “Thee” + “Thou” + “Thine”
  • PDF Download • “For Pentecost Sunday”

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