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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 • “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
    “Rare Photographs” • Hannibal Bugnini
    On 2 September 2025, we included in this article extremely rare photographs of Archbishop Hannibal Bugnini taken in Iran circa 1979. Bugnini had initially been banished by the pope to Uruguay, but he refused to obey. [This is interesting, since Bugnini relied upon ‘blind obedience’ when it came to modifications of the ancient liturgy.] After he refused to obey the order from the pope, Hannibal Bugnini was banished to Iran. You can also watch a short video of Hannibal Bugnini in Iran, dated 10 November 1979. That’s about a week after the USA embassy hostage crisis began in Tehran, and Pope Saint John Paul II had sent the leader of the Iranian Revolution a special letter.
    —Jeff Ostrowski

Quick Thoughts

    “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
    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

Random Quote

“There are some so restless that when they are free from labour they labour all the more, because the more leisure they have for thought, the worse interior turmoil they have to bear.”

— Pope Gregory the Great

Recent Posts

  • “Reminder” — Month of May (2026)
  • “Englished” Gregorian Chant • 5 Considerations
  • Simplified Version • “Canon in D” (Pachelbel)
  • PDF Download • “Organ Accompaniment”
  • “Gregorian Chant Quiz” • 4 May 2026

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