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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

The Beauty Of Ancient Catholic Manuscripts

Jeff Ostrowski · July 6, 2015

555 codex T WOULD BE DIFFICULT to speak too highly of the ancient Catholic manuscripts being made available on the internet. What stupendous treasures!  Those who damaged our liturgy in the 1960s are heartbroken to see such things accessible to anyone with a smart phone, because more and more young Catholics can easily discover our precious heritage—and this was not supposed to happen, according to some.

Some of these manuscripts were preserved only because of their beauty. (I speak of a time in history when people did not know how to read “neumatic” musical notation correctly.) Manuscripts were usually created by (at least) two monks. One drew the pictures, and the other wrote the words and/or musical notation.

What makes SAN GALL 546 so interesting is that hundreds of pages were left incomplete, as you can see:

561 codex sang 546 560 codex 559 codex


Perhaps they never got around to finishing this manuscript? Or maybe some other cause interrupted this book’s creation, and they never finished it? Hopefully some genius out there can explain what happened by commenting on the CCW Facebook page:

558 codex 557 codex 556 codex sang 546


In that same manuscript, I noticed a hymn called “Vita Sanctorum,” which I wrote about here:

553 vita sanctorum

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

Filed Under: Articles Tagged With: Medieval Manuscripts Last Updated: August 14, 2021

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About Jeff Ostrowski

Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He resides with his wife and children in Michigan. —(Read full biography).

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President’s Corner

    PDF Download • Introit (3rd Sn. Ord.)
    This coming Sunday, 25 January 2026, is the 3rd Sunday in Ordinary Time (Year A). The ENTRANCE CHANT (“Dóminus secus mare”) is somewhat rare because it comes from the New Testament. The ancient authentic version in Latin was gotten rid of in 1955 but restored in 1970. The musical score in English (PDF file) is bright and cheerful. In this rehearsal video (click here) I attempt to sing the melody while simultaneously accompanying myself on the organ. I encourage you to print off the organ accompaniment (PDF) and play through its ‘happy’ harmonies.
    —Jeff Ostrowski
    “Lamb of God” (Musical Setting)
    The MASS OF SAINT ANNE LINE has been quite popular ever since ROMAN MISSAL Third Edition was released circa 2011. You can now download the musical score (PDF) for this setting, placed into five (5) different keys; i.e. “pitch levels” that are high and low. This makes it possible to adjust based upon who’s singing at which time of day.
    —Jeff Ostrowski
    PDF Download • Introit (2nd Sn. Ord.)
    This coming Sunday, 18 January 2026, is the 2nd Sunday in Ordinary Time (Year A). The ENTRANCE CHANT is set according to the fourth mode, which sounds ‘serious’ or ‘dark’ or ‘haunting’ or ‘mysterious’—and its English adaptation corresponds to the authentic version (“Omnis terra adóret”) found in the GRADUALE ROMANUM. In this rehearsal video (click here) I attempt to sing the melody while simultaneously accompanying myself on the organ. I encourage you to print off the organ accompaniment (PDF) and play through it, because the harmonies are delightful.
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of January (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. Signing up couldn’t be easier: simply scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    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 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

Random Quote

“Even after 1600 A.D.—despite major changes in musical taste—the compositions of Father Cristóbal de Morales were reprinted at Venice. Indeed, and as late as 1619 A.D. one Venetian publisher found his magnificats still in sufficient demand to make a profitable commercial venture out of issuing a new transcribed version for equal voices.”

— Dr. Robert Murrell Stevenson (d. 2012)

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