Views from the Choir Loft

Rehearsal Videos • “Sanctus & Hosanna” (Guerrero)

Jeff Ostrowski · May 23, 2017

KNOW A SECRET. Would you like to hear? Once upon a time, Roman Catholic composers were trained from birth in a special art of musical composition. This situation produced masters whose liturgical works contain unthinkable beauty, waiting for all to enjoy. They would combine plainsong themes in supremely brilliant ways, and I have tried to indicate such places by means of red ink: ¹

* * PDF • SANCTUS & HOSANNA (“Missa Iste Sanctus”)

For years, I hoped other Catholic websites would promote the gorgeous compositions by such giants as Palestrina, Verdelot, Victoria, Guerrero, Lassus, Marenzio, and others. However, very few do—although they exert tremendous energy complaining about “bad liturgy.” Therefore, I began making rehearsal videos in which I sing all the vocal parts (even the soprano notes!) to help this music live again in our churches:

REHEARSAL VIDEOS for each individual voice await you at #5454.

Many people (inexplicably) do not visit LALEMANT POLYPHONIC, where individual voice parts are located. That’s a huge mistake, because the whole point of these tracks is the individual voice tracks—and we’ve seen marvelous results from their use here in Los Angeles. By the way, those who attend Sacred Music Symposium 2017 will learn how to create these recordings.

Could anyone listen to the Tenor Rehearsal Video (at the “Hosanna” section) and not be overwhelmed by the majestic dignity and holiness of these melodies?

The Benedictus is forthcoming.

NOTES FROM THIS ARTICLE:

1 The red ink refers to the motet which serves as the basis for this parody Mass.

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

About Jeff Ostrowski

Jeff Ostrowski holds his B.M. in Music Theory from the University of Kansas (2004). He resides with his wife and children in Michigan. —(Read full biography).

Simplified Accompaniment (Easter Hymn)

Number 36 in the Brébeuf Hymnal is “At the Lamb’s high feast we sing,” an English translation for Ad Cenam Agni Próvidi (which was called “Ad Régias Agni Dapes” starting 1631). As of this morning, you can download a simplified keyboard accompaniment for it. Simple click here and scroll to the bottom. Many organists are forced to serve simultaneously as both CANTOR and ACCOMPANIST. In spite of what some claim, this can be difficult—which explains why choirmasters appreciate these simplified keyboard accompaniments. Sadly, many readers will click that link but forget to scroll to the bottom where the simplified PDF file is located.

—Jeff Ostrowski

PDF Download • “Quasi Modo Sunday”

The Introit for “Quasi Modo Sunday” (12 April 2026) is particularly beautiful. The musical score can be downloaded as a PDF file, and so can the organ accompaniment. The official language of the Catholic Church is Latin (whereas Greek is our mother tongue). Vatican II said Gregorian Chant must be given “first place” under normal circumstances. As a result, some parishes will rightly sing the authentic version. On the other hand, because so many USA dioceses disobey the mandate of Vatican II, some musicians sing plainsong in the vernacular. I have attempted to simultaneously accompany myself on the pipe organ while singing the English version. Although very few take advantage of it, the complete Proprium Missae is posted at the flourishing feasts website.

—Jeff Ostrowski

‘German’ Introductions for Hymns

German organ books have an enchanting habit of including introductions for each and every hymn. For example, consider this snazzy example found in a German hymnal published in 1902. In the Saint Jean de Brébeuf Hymnal, that melody is called “Laudes Mariae” and was married to Omni Die Dic Mariae, with a popular English translation (“Daily, daily, sing to Mary”) by Father Henry Bittleston, an Oratorian priest. Notice they also added a ‘tailpiece’ or ‘playout’ or postlude at the end—a very German thing to do!

—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

“Gregorian Chant Quiz” • 24 March 2026

How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!

—Jeff Ostrowski