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Corpus Christi Watershed

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

Andrew Leung • Article Archive

Andrew Leung graduated from the sacred music program of Franciscan University of Steubenville, majored in vocal performance. He has also studied organ, choral conducting and Gregorian chant with world-class musicians. Prior to returning to Hong Kong, he served as a parish music director in Atlanta, and later as the organist and choirmaster at the Cathedral of Macau, China. Andrew is currently the music director of Vox Antiqua, conductor of the Cecilian Singers and music director at Our Lady of China Church. He is also an artist and vocal coach at the Paul Phoenix Academy.—Read full biography (with photographs).

Andrew Leung · March 30, 2017

Reconstructed 16th-Century Mass

An interesting project to reconstruct a 16th century Mass as Henry VIII would have heard it.

Andrew Leung · February 14, 2017

Feature Video • London Oratory Schola

A very cool promotion video of the Schola Cantorum of the London Oratory School

Andrew Leung · February 2, 2017

Invest in your Music Program!

Financial support is necessary for building a successful parish music program.

Andrew Leung · January 12, 2017

The Role of Catholic Church Choir

Keep God as the center of the choir and direct our music towards Him.

Andrew Leung · January 5, 2017

PDF Download • “Missa de Angelis” (Fr. Castro)

Fr. Áureo Castro’s setting alternates the chant melody and the choral parts.

Andrew Leung · November 24, 2016

Free Download • Simple Choral Midnight Mass Introit

A simple setting of “Dominus Dixit ad Me” by Fr. Áureo Castro.

Andrew Leung · November 10, 2016

CMAA Winter Sacred Music 2017

Early Registration is still available for Winter Sacred Music 2017 (Birmingham, AL).

Andrew Leung · October 27, 2016

New Document on Christian Burial and Cremation

The CDF released a Instruction on Christian Burial and Cremation yesterday.

Andrew Leung · October 13, 2016

The New Feature on the Organ of King’s College

Check out this newest feature on the restored organ in the Chapel of King’s College!

Andrew Leung · October 6, 2016

St. Francis and Sacred Music

St. Francis of Assisi is not a “liturgical hippie.” He is a lover of the Roman liturgy and might have sung polyphony…

Andrew Leung · September 15, 2016

The Power of Sacred Music

True Sacred Music brings hope and joy to those suffering.

Andrew Leung · September 8, 2016

Ten Reflections on “Pride of Place”

Giving Gregorian Chant the “pride of place” is more than just singing the Propers.

Andrew Leung · September 1, 2016

The First Catholic Diocese in East Asia

Macau is the first Roman Catholic diocese in East Asia.

Andrew Leung · August 27, 2016

The Reason for Choir — Paul Mealor

Welsh composer, Paul Mealor, talks about the importance of choral music.

Andrew Leung · August 25, 2016

I Am Moving Again!

I will be studying at St. Joseph Seminary in the historical Diocese of Macau, China.

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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

According to the Instruction “Musicam sacram” of 5 March 1967, Article 34 §1, the polyphonic “Ordinarium Missae” can in the future still be sung suetis normis, “according to the customary norms,” i.e. by the choir. In fact, this form of the high Mass is placed in high relief compared to the other forms, among which the congregationally sung Gregorian chant Mass deserves our special attention.

— Monsignor Overath (President, “Consociatio Internationalis Musicæ Sacræ” founded by Pope Saint Paul VI

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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