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Corpus Christi Watershed

We’re a 501(c)3 public charity established in 2006. We have no endowment, no major donors, no savings, and run no advertisements. We exist solely by the generosity of small donors.

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  • Pew Resources
    • Brébeuf Catholic Hymnal
    • Jogues Illuminated Missal
    • KYRIALE • Saint Antoine Daniel
    • Campion Missal, 3rd Edition
    • Repository • “Spanish Music”
    • Ordinary Form Feasts (Sainte-Marie)
  • MUSICAL WEBSITES
    • René Goupil Gregorian Chant
    • Noël Chabanel Psalms
    • Nova Organi Harmonia (2,279 pages)
    • Roman Missal, 3rd Edition
    • Father Enemond Massé Manuscripts
    • Lalemant Polyphonic
  • Miscellaneous
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    • Secrets of the Conscientious Choirmaster
    • “Wedding March” for lazy organists
    • Emporium Kevin Allen
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    • Sacred Music Symposium 2023
    • The Eight Gregorian Modes
    • Gradual by Pothier’s Protégé
    • Seven (7) Considerations
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St. Jean de Lalande Library of Rare Books

St. Jean de Lalande Library of Rare Books

“The judicious searcher in this remarkable online collection will certainly reap great rewards for his effort.” — Fr. Robert A. Skeris, Benjamin T. Rome School of Music (CUA)

HE SAINT Jean de Lalande Library is derived primarily from Jeff Ostrowski’s personal collection of rare Gregorian chant books. While it doesn’t contain every single book in his possession (some were too fragile to scan), the most important ones are there. About 23,000 pages were uploaded to the CCW server in 2008. Some very important books were thereby made available to the entire world, including: (A) the Nova Organi Harmonia of Flor Peeters and company; (B) both editions of Fr. Hermesdorff’s Graduale; (C) the 1903 Liber Usualis of Dom Mocquereau; (D) both editions of the Liber Gradualis by Dom Pothier.

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  • St. Jean de Lalande Library of Rare Books
    • Tome 01 • Kyriale Romanum • “Editio Vaticana”
    • Tome 02 • “Graduale Romanum” • “Editio Vaticana”
    • Tome 02 • “Graduale Romanum” • Gregorian Notation
    • Tome 03 • Gregorian Chant • Modern Notation
    • Tome 04 • Gregorian Treatises
    • Tome 05 • “Ordinarium Missæ” • Organ Accompaniments
    • Tome 06 • “Graduale Romanum” • Organ Accompaniments
    • Tome 07 • Treatises on Organ Accompaniment
    • Tome 08 • Miscellaneous Organ Accompaniments
    • Tome 09 • Psalmi in Notis
    • Tome 10 • Incomplete Copies (Fragments)
    • Tome 11 • Assorted Musical Scores
    • Tome 12 • Other Religious Books (Miscellaneous)

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Corpus Christi Watershed

President’s Corner

    Proof Which All Can Immediately See!
    “A little knowledge is a dangerous thing,” as the famous maxim goes. Over the years, I’ve observed malicious attacks on the Brébeuf Catholic Hymnal. Rather than scoring a ‘hit’ on the Brébeuf Hymnal, its attackers often reveal profound ignorance. I’ve been advised never to reply … but I break that rule today. Certain voices online assert that the Brébeuf Hymnal is “untraditional” because it includes both the Urbanite and pre-Urbanite versions of the hymns. But if only they would glance at a copy of the 1913 VESPERALE (printed by order of Pope Saint Pius X) they would see how mistaken such statements are.
    —Jeff Ostrowski
    New Bulletin Article • “8 June 2025”
    My pastor requested that I write short articles each week for the parish bulletin. Those responsible for preparing similar write-ups may find a bit of inspiration in these brief columns. The latest article includes a few anecdotes about Archbishop Fulton J. Sheen and Abraham Lincoln.
    —Jeff Ostrowski
    “Gloria in Spanish” • Free Accompaniment
    Several people have requested an organ accompaniment for the GLORY TO GOD which prints the Spanish words directly above the chords. The Spanish adaptation—Gloria a Dios en el cielo—as printed in Roman Misal, tercera edición was adapted from the “Glória in excélsis” from Mass XV (DOMINATOR DEUS). I used to feel that it’s a pretty boring chant … until I heard it sung well by a men’s Schola Cantorum, which changed my view dramatically. This morning, I created this harmonization and dedicated it to my colleague, Corrinne May. You may download it for free. Please let me know if you enjoy it!
    —Jeff Ostrowski

Quick Thoughts

    Antiphons Don’t Match?
    A reader wants to know why the Entrance and Communion antiphons in certain publications deviate from what’s prescribed by the GRADUALE ROMANUM published after Vatican II. Click here to read our answer. The short answer is: the Adalbert Propers were never intended to be sung. They were intended for private Masses only (or Masses without music). The “Graduale Parvum,” published by the John Henry Newman Institute of Liturgical Music in 2023, mostly uses the Adalbert Propers—but sometimes uses the GRADUALE text: e.g. Solemnity of Saints Peter and Paul (29 June).
    —Corpus Christi Watershed
    When to Sit, Stand and Kneel like it’s 1962
    There are lots of different guides to postures for Mass, but I couldn’t find one which matched our local Latin Mass, so I made this one: sit-stand-kneel-crop
    —Veronica Brandt
    The Funeral Rites of the Graduale Romanum
    Lately I have been paging through the 1974 Graduale Romanum (see p. 678 ff.) and have been fascinated by the funeral rites found therein, especially the simply-beautiful Psalmody that is appointed for all the different occasions before and after the funeral Mass: at the vigil/wake, at the house of the deceased, processing to the church, at the church, processing to the cemetery, and at the cemetery. Would that this “stational Psalmody” of the Novus Ordo funeral rites saw wider usage! If you or anyone you know have ever used it, please do let me know.
    —Daniel Tucker

Random Quote

“Franz Liszt was an eminent keyboard virtuoso but a dangerous example for the young. … As a composer he was terrible.”

— Clara Schumann

Recent Posts

  • Proof Which All Can Immediately See!
  • New Bulletin Article • “8 June 2025”
  • “The Adalbert Propers” • Six (6) Quotations
  • PDF Download • “Entrance Chant” for 29 June … Which Falls on a Sunday This Year!
  • “Music List” • 6th Sunday of Easter (Year C)

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Corpus Christi Watershed is a 501(c)3 public charity dedicated to exploring and embodying as our calling the relationship of religion, culture, and the arts. This non-profit organization employs the creative media in service of theology, the Church, and Christian culture for the enrichment and enjoyment of the public.