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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

    “Sanctus VIII” • Organ Accompaniment
    A few days ago, I composed this organ harmonization for SANCTUS VIII. This Mass is traditionally called Missa de ángelis or “Mass of the angels.” In French, it is Messe de Anges. You can evaluate my attempt to simultaneously accompany myself on the pipe organ (click here) while singing the melody. My parish is currently singing this setting.
    —Jeff Ostrowski
    Music List • (5th Sund. Ordinary Time)
    Readers have expressed interest in perusing the ORDER OF MUSIC I’ve prepared for this coming Sunday, 8 February 2026, which is the 5th Sunday in Ordinary Time (Year A). If such a thing interests you, feel free to download it as a PDF file. You will probably notice it isn’t as ‘complete’ or ‘spiffy’ as usual, owing to some difficulties which took place this week.
    —Jeff Ostrowski
    PDF • “Communion” (5th Sunday in Ordin.)
    The COMMUNION ANTIPHON for this coming Sunday, 8 February 2026—which is the 5th Sunday in Ordinary Time (Year A)—is truly delightful. You can download the musical score completely free of charge. This text will be familiar to altar boys, because it’s PSALM 42. The Feder Missal makes the following claim about that psalm: “A hymn of a temple musician from Jerusalem: he is an exile in a heathen land, and he longs for the holy city and his ministry in the Temple there. The Church makes his words her own.”
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of Febr. (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
    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —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

Random Quote

These prayers were not peculiar to Good Friday in the early ages (they were said on Spy Wednesday as late as the eighth century); their retention here, it is thought, was inspired by the idea that the Church should pray for all classes of men on the day that Christ died for all. Duchesne is of opinion that the “Oremus” now said in every Mass before the Offertory—which is not a prayer—remains to show where this old series of prayers was once said in all Masses.

— Catholic Encyclopedia (1909)

Recent Posts

  • Pope Paul VI • “Sacrificium Laudis” (15 Aug 1966)
  • “Sanctus VIII” • Organ Accompaniment
  • PDF Download • Sanctus VIII Organ Accompaniment (“Mass of the Angels”)
  • Gorgeous Image of Monks Singing!
  • “Let the Choir Have a Voice” • Jeff Ostrowski’s Essay on Choral Music in the Catholic Mass

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