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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

organ

Keven Smith · October 25, 2023

Organ Improviser in the Spotlight: Wayne Warren

Here’s what you can learn from this Florida-based artist.

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Keven Smith · July 15, 2023

Finding Realistic Inspiration for Organ Improvisation

Here’s where to find improvisation recordings you can actually emulate.

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Keven Smith · August 2, 2022

Need Easy Organ Pieces? Try This Little-Known Composer

Add these fuguettes and trios to your repertoire with minimal practice time.

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Keven Smith · June 28, 2021

Organ Improvisation: To Record, or Not to Record?

If you missed it, you can hear my iPhone recording on YouTube. But will it be quite the same?

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Keven Smith · May 31, 2021

Charles Tournemire: An Organist’s Best Friend

Tournemire’s L’Orgue Mystique is an indispensable resource—especially for organists who are feeling “stuck” in their improvisation.

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Keven Smith · March 9, 2021

The Anatomy of an Organ Improvisation

Here are some audio samples from recent Masses, along with explanations of what I was thinking for each improvisation.

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Keven Smith · March 1, 2021

Three Ways to Improvise at the Organ

Don’t just play the organ. Pray the organ.

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Keven Smith · February 23, 2021

Four Reasons to Improvise at the Organ

If an ex-clarinetist can do it, you can do it—and the benefits far outweigh the effort involved.

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Keven Smith · February 16, 2021

PDF • “Spiritual Mass Plan for Church Organists”

Some guidance on how to stay recollected at a low Mass while you’re also playing organ.

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Keven Smith · July 7, 2020

Unslumping Yourself with the King of Instruments

On those days when you can’t quite put your heart into singing, improvising at the organ can be comforting and rewarding.

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Veronica Brandt · December 1, 2018

PDF Download • “Easy Organ Interludes” (229 pages)

Giovanni Battista Fasolo published an enormous book of organ interludes without pedals • Pierre Gouin typed them up, bringing you this clear window into renaissance liturgical music for free! • Enjoy this treasure trove of organ music from almost 400 years ago! Plus a few highlights from along the way+

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Corpus Christi Watershed

President’s Corner

    Music List • (2nd Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 2nd Sunday of Lent (1 March 2026). If such a thing interests you, feel free to download it as a PDF file. This feast has magnificent propers. Its somber INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with its fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —Jeff Ostrowski
    Which Mass?
    In 1905, when the Vatican Commission on Gregorian Chant began publishing the EDITIO VATICANA—still the Church’s official edition— they assigned different Masses to different types of feasts. However, they were careful to add a note (which began with the words “Qualislibet cantus hujus Ordinarii…”) making clear “chants from one Mass may be used together with those from others.” Sadly, I sometimes worked for TLM priests who weren’t fluent in Latin. As a result, they stubbornly insisted Mass settings were ‘assigned’ to different feasts and seasons (which is false). To understand the great variety, one should examine the 1904 KYRIALE of Dr. Peter Wagner. One should also look through Dom Mocquereau’s Liber Usualis (1904), in which the Masses are all mixed up. For instance, Gloria II in his book ended up being moved to the ‘ad libitum’ appendix in the EDITIO VATICANA.
    —Jeff Ostrowski

Quick Thoughts

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    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

“Gloria, Credo, etc., may not be broken into detached fragments; it is wrong to omit or hurry over the Proper of the day; it is not permitted to substitute organ playing for the Proper; it is wrong to use, however briefly, themes from theatrical or dance music, from popular songs, love-songs, comic songs; drums, cymbals, piano, bag-pipes are too noisy for Church use .”

— Pope Leo XIII (25 September 1884))

Recent Posts

  • Music List • (2nd Sunday of Lent)
  • PDF Download • “Funerals in the Ordinary Form”
  • Extreme Unction
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  • Which Mass?

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