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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 “O Antiphons” Begin Tonight

Andrew Leung · December 17, 2015

CTL O Antiphons ODAY IS DECEMBER 17. It is seven days before Christmas Eve. Today is the day that Advent gets even more intense. The Church have chosen special Antiphons and Readings for the coming week to help us prepare the coming of Christ. The “O Antiphons“ are a set of antiphons for Vespers that is prayed during the coming seven days.

The reason why they are called the “O Antiphons“ is because each of them start with the letter “O”. In the Liber Usualis, they are called the “Great Antiphons”. They were mentioned in the 6th century and they were used in Rome by the 8th century. The texts of these antiphons are from the Old Testament Prophetic and Wisdom Books. These antiphons are recited or sung before and after the Magnificat, or the Canticle of Mary. Each of the antiphons begins by calling out a title of Christ:

O Sapientia………….O Wisdom

O Adonai……………..O Lord

O Radix Jesse………O Root of Jesse

O Clavis David……..O Key of David

O Oriens……………..O Dayspring/Dawn

O Rex Gentium…….O King of Nations

O Emmanuel………..O Emmanuel (God is with us)

There is a very cool fact about these titles. If you take the first letters of each titles and spell out from the last one, you will get: “EROCRAS”. And the Latin words “ero cras” means “I will be (there) tomorrow”. Here are the pages of the Great Antiphons from the Liber Usualis (Solesmes 1957) with English translations:

    * *  PDF • THE GREAT ANTIPHONS OF ADVENT

CTL James MacMillan OWADAYS, many of us still sing the “O Antiphons” in Advent, just in a different setting. The text of the famous Advent hymn, O Come, O Come Emmanuel, is from the Great Antiphons. And actually, Jeff Ostrowski just wrote about the Original Setting of the Tune yesterday.

As I was searching through other pieces that are related to the Great Antiphons, I found this Percussion Concerto below. The concerto, “Veni, Veni, Emmanuel“, was composed by Sir James MacMillan, a leading composer who have just been named Catholic of the Year by the Catholic Herald magazine. He has written music for Pope Benedict’s visit to England in 2010 and he has been commissioned recently to write a work for Shrine of Fátima’s centenary which will be attended by Pope Francis. James MacMillan is also the founder of Musica Sacra Scotland, an organization that promotes Gregorian Chant in Scotland.

The Scottish composer took the tune of the hymn as the theme of his work. It is a very interesting and intense piece! It is a non-liturgical piece. But one can listen to it and meditate on Mary and Joseph’s intense and difficult trip right before the birth of our Lord.

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

Filed Under: Articles Last Updated: January 1, 2020

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About Andrew Leung

Andrew Leung currently serves the music director of Vox Antiqua, conductor of the Cecilian Singers, and music director at Our Lady of China Church.—(Read full biography).

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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

    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 organists coming to grips with playing the pipe organ. The piece 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 the Bach 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
    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

Random Quote

“How on earth in the [post-conciliar] liturgy for the dead should there be no more mention of sin and expiation? There’s a complete absence of imploring the Lord’s mercy. […] Although the texts were beautiful they were still lacking in the sense of sin and the sense of mercy. But we need this! And when my final hour comes, ask for mercy for me from the Lord, because I have such need of it!”

— Pope Saint Paul VI (3 June 1971)

Recent Posts

  • Simplified Version • “Canon in D” (Pachelbel)
  • PDF Download • “Organ Accompaniment”
  • “Gregorian Chant Quiz” • 4 May 2026
  • “Rare Photographs” • Hannibal Bugnini
  • “Regina Caeli” • More Than You Wanted To Know

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