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Corpus Christi Watershed

“A much greater source of anxiety to Us is the style of action of those who maintain that liturgical worship should shed its sacred character, who foolishly say we should substitute for sacred items & furnishings ordinary common things in daily use.” —Pope Saint Paul VI (14 Oct 1968)

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Views from the Choir Loft

PDF Download • Organ Interludes Based on Plainsong (Manuals Only) — 104 pages!

Andrea Leal · August 15, 2022

XCITING NEWS! Mr. Stephen Perez is offering a terrific collection of modal organ interludes as a free PDF download. Many of these interludes are based on the most beloved Gregorian chant melodies: Pange Lingua, Ave Maris Stella, Lauda Sion, Puer Natus, Creator Alme Siderum, Ave Maria, Vidi Aquam, Vexilla Regis, Veni Creator Spiritus, Assumpta Est Maria, and so forth. The selections were chosen with great care, including marvelous composers such as Flor Peeters, Dom Gregory Murray, Dom Alphege Shebbeare, John Lee, Oreste Ravanello, J.S. Bach, and many others. Best of all, these interludes are within reach of the ‘average’ organist, since they are for manuals only.

*  PDF • Organ Interludes (Manuals Only) • 104 Pages
—Based on Gregorian Melodies • Edited by Mr Stephen Perez.
*  Amazon Softcover (Eligible for Prime) • $9.99

Full title of the publication:

M  Simple Organ Interludes (Manuals Only)
M  In honor of Father Énemond Massé (d. 1646)
M  Including modal compositions based on plainchant melodies.
M  For use in the Catholic Church.

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Dom Gregory Murray’s pieces are particularly beautiful. My parish is currently without an organist, since the person who had been serving as our organist recently entered the seminary. I asked my colleague, Jeff Ostrowski, to record a few of the Murray interludes, so readers can get an idea what they sound like. Mr. Ostrowski chose to record INTERLUDE 37—based on Sanctus VIII—as well as INTERLUDE 59.

Our Own Organ Interludes

E ARE IN THE MIDST of our own publication project. We ask Catholic composers to consider submitting organ interludes you have written! I will email you a release form by which you give us legal permission to use your composition(s). Although you retain your copyright, we humbly request that you refrain from publishing your piece until three years after our book appears in print. Below are the composers who have already contributed pieces to our forthcoming collection:

M  Josep Solé Coll
M  Kevin Allen
M  William Fritz
M  Dr. Gregory Hamilton
M  Richard J. Clark
M  Andrew Leung
M  Father David Friel
M  Dr. Lucas Tappan

To submit your organ interlude(s), please email:

Don’t forget to write ‘organ interlude submission’ in the subject line of your email. Please try to submit your pieces over the next few months.

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

Filed Under: Articles, Featured, PDF Download Tagged With: Catholic Organ Interludes, Catholic Organ Voluntaries, Dom Gregory Murray 100 Organ Interludes, Free Organ Interludes Chant, Free Organ Preludes, Organist Interludes, PDF Organ Voluntaries, PDF Pipe Organ Interludes, Plainsong Improvisation Organ Last Updated: September 16, 2022

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About Andrea Leal

Andrea Leal is a wife and homeschooling mother of 6 children. She serves as choir director for the Traditional Latin Mass in Las Vegas.—(Read full biography).

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Corpus Christi Watershed

President’s Corner

    15th Sunday in Ordinary Time (Year C)
    This coming Sunday—13 July 2025—is the 15th Sunday in Ordinary Time (Year C). All the chants have been conveniently assembled and posted at the feasts website. The OFFERTORY, Ad Te Levávi, is particularly beautiful.
    —Jeff Ostrowski
    Music Director Job • $80,000 per year
    Our readers will be interested in this job offering for Music Director at Saint Adalbert’s Basilica, located 40 minutes from where I live. My pastor was recently elevated to this basilica. He is offering $80,000 per year, plus benefits. I’m told Saint Adalbert’s Basilica is utterly gorgeous and contains one of America’s most magnificent pipe organs. It would be fantastic to have a colleague nearby!
    —Jeff Ostrowski
    Simplest “Agnus Dei” Ever Published
    Our choir is on break during the month of July. I needed a relatively simple “Agnus Dei,” so I composed this setting for organ & voice in honor of Saint René Goupil. It has been called the simplest setting ever composed. I love CARMEN GREGORIANUM (“Gregorian Chant”), especially the ALLELUIAS, INTROITS, and COMMUNION ANTIPHONS. That being said, some have pointed out that certain sections of the Kyriale aren’t as strong as the Graduale or Vesperale. There’s a reason for this—but it would be too complicated to explain at this moment.
    —Jeff Ostrowski

Quick Thoughts

    Pope Pius XII Hymnal?
    Have you ever heard of the Pope Pius XII Hymnal? It’s a real book, published in the United States in 1959. Here’s a sample page so you can verify with your own eyes it existed.
    —Corpus Christi Watershed
    “Hybrid” Chant Notation?
    Over the years, many have tried to ‘simplify’ plainsong notation. The O’Fallon Propers attempted to simplify the notation—but ended up making matters worse. Dr. Karl Weinmann tried to do the same in the time of Pope Saint Pius X by replacing each porrectus. You can examine a specimen from his edition and see whether you agree he complicated matters. In particular, look at what he did with éxsules fílii Hévae.
    —Corpus Christi Watershed
    Antiphons Don’t Match?
    A reader wants to know why the Entrance and Communion antiphons in certain publications deviate from what’s prescribed by the GRADUALE ROMANUM published after Vatican II. Click here to read our answer. The short answer is: the Adalbert Propers were never intended to be sung. They were intended for private Masses only (or Masses without music). The “Graduale Parvum,” published by the John Henry Newman Institute of Liturgical Music in 2023, mostly uses the Adalbert Propers—but sometimes uses the GRADUALE text: e.g. Solemnity of Saints Peter and Paul (29 June).
    —Corpus Christi Watershed

Random Quote

“Young people have entrusted me with their absolute preference for the Extraordinary Form… […] But, above all, how can we understand—how can we not be surprised and deeply shocked—that what was the rule yesterday is prohibited today? Is it not true that prohibiting or suspecting the Extraordinary Form can only be inspired by the demon who desires our suffocation and spiritual death?”

— Cardinal Sarah to Edward Pentin (23 September 2019)

Recent Posts

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  • August 2025 • “Colorado Sacred Music Conference”

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