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Corpus Christi Watershed

Jesus said to them: “I have come into this world so that a sentence may fall upon it, that those who are blind should see, and those who see should become blind. If you were blind, you would not be guilty. It is because you protest, ‘We can see clearly,’ that you cannot be rid of your guilt.”

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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

    “Common” Responsorial Psalm?
    I try to avoid arguing about liturgical legislation (even with Catholic priests) because it seems like many folks hold certain views—and nothing will persuade them to believe differently. You can show them 100 church documents, but it matters not. They won’t budge. Sometimes I’m confronted by people who insist that “there’s no such thing” as a COMMON RESPONSORIAL PSALM. When that happens, I show them a copy of the official legislation in Latin. I have occasionally prevailed by means of this method.
    —Jeff Ostrowski
    “Music List” • 5th Sunday of Easter (Year C)
    Some have expressed interest in perusing the ORDER OF MUSIC I prepared for the 5th Sunday of Easter (18 May 2025). If such a thing interests you, feel free to download it as a PDF file. The Communion Antiphon was ‘restored’ the 1970 Missale Romanum (a.k.a. MISSALE RECENS) from an obscure martyr’s feast. Our choir is on break this Sunday, so the selections are relatively simple in nature.
    —Jeff Ostrowski
    Communion Chant (5th Sunday of Easter)
    This coming Sunday—18 May 2025—is the 5th Sunday of Easter, Year C (MISSALE RECENS). The COMMUNION ANTIPHON “Ego Sum Vitis Vera” assigned by the Church is rather interesting, because it comes from a rare martyr’s feast: viz. Saint Vitalis of Milan. It was never part of the EDITIO VATICANA, which is the still the Church’s official edition. As a result, the musical notation had to be printed in the Ordo Cantus Missae, which appeared in 1970.
    —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

“We turn to the East when we stand to pray, since this is where the sun and the stars rise. It is not, of course, as if God were there alone and had forsaken the rest of creation. Rather, when these earthly bodies of ours are turned towards the more excellent, heavenly bodies, our minds are thereby prompted to turn towards the most excellent being, that is, to our Lord.”

— Saint Augustine of Hippo

Recent Posts

  • “Common” Responsorial Psalm?
  • A Gentleman (Whom I Don’t Know) Approached Me After Mass Yesterday And Said…
  • “For me, Gregorian chant at the Mass was much more consonant with what the Mass truly is…” —Bp. Earl Fernandes
  • “Lindisfarne Gospels” • Created circa 705 A.D.
  • “Music List” • 5th Sunday of Easter (Year C)

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