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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
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 • “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
    PDF • “Music List” (Sunday, 28 December)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for Feast of the Holy Family of Jesus, Mary, & Joseph (28 Dec. 2025). If such a thing interests you, feel free to download it as a PDF file. The FAUXBOURDON verses for the Communion Antiphon are particularly gorgeous. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the feasts website alongside the official texts in Latin.
    —Jeff Ostrowski
    PDF • “Music List” (Xmas Midnight Mass)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for Christmas Midnight Mass (“Ad Missam In Nocte”). If such a thing interests you, feel free to download it as a PDF file. The ENTRANCE CHANT is simple, but quite beautiful. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the feasts website alongside the official texts in Latin.
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “In Paradisum” in English
    We always sing the IN PARADISUM in Latin, as printed on this PDF score. I have an appallingly bad memory (meaning I’d be a horrible witness in court). In any event, it’s been brought to my attention that 15 years ago I created this organ accompaniment for the famous and beautiful ‘IN PARADISUM’ Gregorian chant sung in English according to ‘MR3’ (Roman Missal, Third Edition). If anyone desires such a thing, feel free to download and print. Looking back, I wish I’d brought the TENOR and BASS voices into a unison (on B-Natural) for the word “welcome” on the second line.
    —Jeff Ostrowski
    What does this mean? “Pre-Urbanite”
    Something informed critics have frequently praised vis-à-vis the Saint Jean de Brébeuf Hymnal is its careful treatment of the ancient hymns vs. the “Urbanite” hymns. This topic I had believed to be fairly well understood—but I was wrong. The reason I thought people knew about it is simple; in the EDITIO VATICANA 1908 Graduale Romanum (as well as the 1913 Liber Antiphonarius) both versions are provided, right next to each other. You can see what I mean by examining this PDF file from the Roman Gradual of 1908. Most people still don’t understand that the Urbanite versions were never adopted by any priests or monks who sang the Divine Office each day. Switching would have required a massive amount of effort and money, because all the books would need to be changed.
    —Jeff Ostrowski
    PDF Download • “Santo Santo Santo”
    Those searching for a dignified, brief, simple, bright setting of SANCTUS in Spanish (“Santo Santo Santo”) are invited to download this Setting in honor of Saint John Brébeuf (organist & vocalist). I wonder if there would be any interest in me recording a rehearsal video for this piece.
    —Jeff Ostrowski

Random Quote

“But when all aids to a good translation of the Psalms have been made use of, it often happens, from various causes, that some words or phrases of a Psalm remain obscure or unintelligible to the reader. Then it is that explanatory Notes become necessary.”

— Father Charles J. Callan (who founded “The Homiletic and Pastoral Review”)

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