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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

Grant Awarded for Digitizing Over 400,000 Pages of Ancient Solesmes Manuscripts

Matthew Frederes · March 6, 2023

REPERTORIUM is new project that has been awarded a 3 million euro grant by the EU to scan and digitize over 400,000 ancient manuscript images from the Abbey of Saint-Pierre de Solesmes archive.  The result will be made available for musicological study through Oxford’s DIAMM portal.  The project commenced on January 1, 2023.

From the REPERTORIUM website at Neumz.com:

Over two million musical works will be correlated for concordance amongst the Solesmes dataset and external datasets such as the Cantus Index network. Approximately 4,000 novel chants are expected to be discovered and prioritized for manual indexing. A total of 127,000 chants will be manually indexed for OMR DL training purposes. Approximately 2,200 hours of Gregorian chants sung in the Tridentine forms, corresponding to the manuscript tradition, will be recorded at Le Barroux (France). Between 1,800 and 3,000 handwritten operatic aria manuscripts will be digitized from ICCMU’s DIDONE database.

Neumz is a project of the Benedictine nuns of the Abbey of Notre-Dame de Fidélité, a monastery founded by the nuns from the Abbey of Saint-Louis du Temple of Simon, located in Jouques, near Aix-en-Provence.

The nuns have recorded more than 7,000 hours of Gregorian Chant from the Psalter, Lectionary, Collectary, Antiphonary, Responsoriary, and Gradual, and is said to be the only complete recording of all Gregorian Chant in the world.

 

Opinions by blog authors do not necessarily represent the views of Corpus Christi Watershed.

Filed Under: Articles Last Updated: March 6, 2023

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About Matthew Frederes

Mr. Frederes is a software engineer, pilot, served as an organist for 31 years, and directed small parish choirs/scholas for 22 years. He and his wife have 12 children. —(Read full biography).

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Corpus Christi Watershed

President’s Corner

    Simplified Accomp. • Schubert’s “Ave Maria.”
    Sometimes the organist must simultaneously serve as the CANTOR. (Those who work in the field of church music know exactly what I’m talking about.) One of our contributors composed this simplified keyboard accompaniment for Franz Schubert’s “Ave Maria,” a piece which is frequently requested for Catholic funerals and weddings. In terms of the discussion about whether that piece is too theatrical (‘operatic’) for use in Church, I will leave that discussion to others. All I know is, many church musicians out there will appreciate this simplified version.
    —Jeff Ostrowski
    “Reminder” — Month of April (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 Accompaniment (Easter Hymn)
    Number 36 in the Brébeuf Hymnal is “At the Lamb’s high feast we sing,” an English translation for Ad Cenam Agni Próvidi (which was called “Ad Régias Agni Dapes” starting 1631). As of this morning, you can download a simplified keyboard accompaniment for it. Simply click here and scroll to the bottom. Many organists are forced to serve simultaneously as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult—which explains why choirmasters appreciate these simplified keyboard accompaniments. Sadly, many readers will click that link but forget to scroll to the bottom where the simplified PDF file is located.
    —Jeff Ostrowski

Quick Thoughts

    PDF Download • “Anima Christi”
    I received a request for an organ accompaniment I created way back in 2007 for the “Anima Christi” Gregorian Chant. You can download this PDF file which has the score in plainsong followed by a keyboard accompaniment. Many melodies have been paired with “Anima Christi” over the centuries, but this is—perhaps—the most common one.
    —Jeff Ostrowski
    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski

Random Quote

If it is the explicit will of the Council that the faithful are to be able to sing the “Gloria” or the “Credo” together in Latin [which it is] then indirectly there is being expressed here the obligation of regularly celebrating Mass with Latin Gregorian chant. And not merely occasionally, but with such frequency and constancy as to make the singing of these Latin texts a genuine possession of the faithful.

— Heinrich Flatten, Apostolic Protonotary & Canon Law Professor (Bonn)

Recent Posts

  • Simplified Accomp. • Schubert’s “Ave Maria.”
  • “The Unselected Hymn” • Do You Recognize It?
  • 2026 Sacred Music Pilgrimage (Washington DC) • With Richard J. Clark
  • “Reminder” — Month of April (2026)
  • “Gregorian Chant Isn’t a Platform for Your Personal Theories, Jeff” • (A Letter We Received)

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