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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

Re: “O Magnum Mysterium” by Lauridsen

Corrinne May · January 3, 2025

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HIS CHRISTMAS was the first time that my choir, the Immaculate Heart of Mary Choir, sang at the Christmas Day Mass at St Joseph’s Church (Victoria Street) Singapore and we had such a blessed time at Mass, singing of the wonderment of God’s Love in the Incarnation. Quite a number of our choir members were moved to tearful contemplation as we sang Morten Lauridsen’s ‘O Magnum Mysterium.’ This beautiful composition was requested by one of my choir members, and here’s a live recording of us singing it:

Apostolic Nuncios • The celebrant at the Christmas Day Mass was His Excellency Archbishop Marek Zalewski, the Apostolic Nuncio to the Republic of Singapore and co-celebrating with him was Monsignor Marinko Antolovic, Charge d’Affaires of the Apostolic Nunciature in Singapore. The choir was delighted when our rector Fr. Joe Lopez asked us to take a photo with the Nuncio after Mass and we happily thronged down the stairs from the choir loft to do so. I must say I’ve grown to really love our little community of choir members. Each one has a story of how they joined the choir and each person is such a gift in my life:

Memorable Gift • We’ve grown quite a bit from our initial 7 or so members when we first started singing back in July 2022 for St Joseph’s Church at the 5 pm Sunday Mass. Prior to Mass, I was delighted to receive a papal rosary from the Nuncio as a gift. The lovely box bore the Motto of the Holy Father Pope Francis: miserando atque eligendo, taken from a homily by Saint Bede which roughly translates as: “Because he saw him through the eyes of mercy and chose him.”

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

Filed Under: Articles Tagged With: Lauridsen O MAGNUM MYSTERIUM Last Updated: January 3, 2025

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About Corrinne May

Corrinne May is one of Singapore’s most celebrated singer-songwriters. She is also a wife and homeschooling mother.—(Read full biography).

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Corpus Christi Watershed

President’s Corner

    PDF Download • “For Pentecost Sunday”
    Yesterday morning, I recorded myself singing the ENTRANCE CHANT for Pentecost Sunday while simultaneously accompanying myself on the pipe organ. Click here to see how that came out. At the end of the antiphon, there’s a triple Allelúja and I just love the chord at the end of the 2nd iteration. The organ accompaniment—along with the musical score for singers—can be downloaded free of charge at the flourishing feasts website. For the record, the antiphon on Pentecost Sunday doesn’t come from a psalm; it comes from the book of Wisdom.
    —Jeff Ostrowski
    PDF Download • “Organ Accompaniment”
    Over the past few years, I’ve been harmonizing all the vernacular plainsong Introit settings by the CHAUMONOT COMPOSERS GROUP. This coming Sunday—10 May 2026—is the 6th Sunday of Easter (Year A). The following declaration will probably smack of “blowing my own horn.” However, I’d rank this accompaniment as my best yet. In this rehearsal video, I attempt to sing it while simultaneously accompanying myself on the pipe organ. The musical score [for singers] as well as my organ accompaniment can be downloaded free of charge from the flourishing feasts website.
    —Jeff Ostrowski
    “Gregorian Chant Quiz” • 4 May 2026
    A few days ago, the CORPUS CHRISTI WATERSHED Facebook page posted this Gregorian Chant quiz regarding a rubric for the SEQUENCE for the feast of Corpus Christi: “Lauda Sion Salvatórem.” There is no audience more intelligent than ours—yet surprisingly nobody has been able to guess the rubric. Drop me an email with the right answer, and I’ll affirm your brilliance to everyone I encounter!
    —Jeff Ostrowski

Quick Thoughts

    “Thee” + “Thou” + “Thine”
    Few musicians realize that various English translations of Sacred Scripture were granted formal approval by the USCCB and the Vatican for liturgical use in the United States of America. But don’t take my word for it! Here are four documents proving this, which you can examine with your own eyes. Some believe the words “Thine” and “Thou” and “Thee” were forbidden after Vatican II—but that’s incorrect. For example, they’re found in the English translation of the ‘Our Father’ at Mass. Moreover, the Revised Standard Version (Catholic Edition) mentioned in those four documents employs “Thine” and “Thou” and “Thee.” It was published with a FOREWORD by Westminster’s Roman Catholic Archbishop (John Cardinal Heenan).
    —Jeff Ostrowski
    “Reminder” — Month of May (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 Version • “Canon in D” (Pachelbel)
    I published an article on 11 November 2023 called Wedding March For The Lazy Organist, which rather offhandedly made reference to a simplified version I created in 2007 for Pachelbel’s Canon. I often use it as a PROCESSIONAL for weddings and quinceañeras. Many organists say they “hate” Pachelbel’s Canon. But I love it. I think it’s bright and beautiful. I created that ‘simplified version’ for musicians coming to grips with playing the pipe organ. It can be downloaded as a free PDF if you visit Andrea Leal’s article dated 15 August 2022: Manuals Only: Organ Interludes Based on Plainsong. Specifically, it is page 84 in that collection—generously offered as a free PDF download. Johann Pachelbel (d. 1706) was a renowned German organist, violinist, teacher, and composer of over 500 works. A friend of Bach’s family, he taught Johann Christoph Bach (Sebastian Bach’s eldest brother) and lived in his house. Those who read Pachelbel’s biography will notice his connection to two German cities adopted as famous hymn tune names: EISENACH and ERFURT.
    —Jeff Ostrowski

Random Quote

[Let there be:] “The Latin, the whole Latin, and nothing but the Latin.”

— Cardinal McIntyre (one of the Vatican II fathers)

Recent Posts

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  • “Thee” + “Thou” + “Thine”
  • PDF Download • “For Pentecost Sunday”
  • “Reminder” — Month of May (2026)
  • “Englished” Gregorian Chant • 5 Considerations

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