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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

Rehearsal Videos • Guerrero “Agnus Dei” (SSATB)

Jeff Ostrowski · May 17, 2017

NE OF THE MANY things participants will learn at the upcoming Sacred Music Symposium is how to produce rehearsal videos. Below you’ll find Guerrero’s AGNUS DEI (“Missa Iste Sanctus”) for which I recorded all the voices, including both Soprano lines. I usually apologize for my Soprano notes (I’m a Baritone), and there are two Soprano lines. But I’m not going to apologize twice—do you understand why?

    * *  PDF Download • AGNUS DEI (“Iste Sanctus”)

REHEARSAL VIDEOS for each individual voice await you at #5512.

The internet has damaged the attention span of many people, and this can be a source of frustration to those of us who blog. I have frequently indicated a special website where you can sing along with each individual voice—yet many still do not realize what’s available there. So I will keep repeating it, and hopefully everyone will eventually bookmark that website.

By the way, that website also contains Mp3 files. YouTube compresses the audio files, making them sound horrible. The Mp3 versions sound much nicer.

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

Filed Under: Articles Last Updated: January 1, 2020

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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).

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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

“It would be difficult to find a failure of imagination greater than that of Carl Czerny.”

— Robert Schumann

Recent Posts

  • “How to Conduct 90 Vespers Services Each Year and Live to Tell the Tale.”
  • 15th Sunday in Ordinary Time (Year C)
  • The Tallis Scholars
  • Music Director Job • $80,000 per year
  • Pope Saint Paul VI to Consilium (14 October 1968)

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