Matri Divinae Gratiae

Jeff Ostrowski · June 30, 2025

(Rehearsal Clips) • Sacred Music Symposium 2025

Even if I live a hundred years, I’ll never forget last week’s conference!

Jeff Ostrowski · April 13, 2022

Kevin Allen’s “Dómine Convértere” Sung At Saint Peter’s Basilica (Vatican City)

The Vatican’s choir sounds beautiful these days—no longer is it “the scandal of Christendom.”

Jeff Ostrowski · March 8, 2022

“Like None Other!” • New Three-Voice Collection

I could not function as a choirmaster without this collection.

Jeff Ostrowski · October 19, 2021

Huge Announcement! • “Three Voiced Polyphony”

Once these songs get into your head, they won’t leave easily—but that’s okay!

Cynthia Ostrowski · September 14, 2016

“Matri Divinæ Gratiæ” • 3-voice Motets (SAB)

Kevin Allen has released a collection every Roman Catholic choir will treasure!

“Music List” • 17th in Ordinary Time (Year C)

Some have expressed interest in perusing the ORDER OF MUSIC I prepared for the 17th Sunday in Ordinary Time (27 July 2025). If such a thing interests you, feel free to download it as a PDF file. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are conveniently stored at the the feasts website.

—Jeff Ostrowski

Communion • “Ask & You Shall Receive”

All of the chants for 27 July 2025 have been added to the feasts website, as usual under a convenient “drop down” menu. The COMMUNION ANTIPHON (both text and melody) are exceedingly beautiful and ancient.

—Jeff Ostrowski

Jeff’s Mother Joins Our Fundraiser

To assist our fundraiser, Mrs. Kathleen Ostrowski has drawn several beautiful sketches which she offers to all our readers free of charge. If you have a moment, I invite you download them at this link.

—Jeff Ostrowski

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