Consociatio Internationalis Musicae Sacrae

Jeff Ostrowski · June 21, 2026

These Photographs Are Utterly Astounding !

Prelates of preëminent prominence such as Arcadio Cardinal Larraona; Fernando Cardinal Antonelli; Monsignor Higini Anglés i Pàmies; Monsignor Johannes Overath; Monsignor Robert A. Skeris; and many more!

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Jeff Ostrowski · June 20, 2026

Public Criticism of Jeff Ostrowski’s Singing Voice • Also: “Dich König loben wir”

This is but one jewel from the rich German Catholic inheritance.

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Jeff Ostrowski · April 20, 2026

“The Unselected Hymn” • Do You Recognize It?

I fought for this one—but lost the battle.

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Oldest Latin Eucharistic Hymn

The Church’s oldest Latin Eucharistic hymn is featured in the Brébeuf Hymnal. Indeed, the legendary Father Adrian Fortescue made a translation of it—matching the original’s meter—which was elevated by the Brébeuf team. For years, we’ve been working on a Spanish hymnal: “Cantoral del Padre Antonio Daniel.” The progress has been slow but steady, and we encourage anyone fluent in Spanish to consider joining the proofreading team. A few days ago, my wife helped me record a rehearsal video for this Spanish version of the Church’s oldest Latin Eucharistic hymn.

—Jeff Ostrowski

Rare Plainsong Accompaniments

Our contributor, Veronica Brandt, went deep into Australia to take photographs of organ accompaniments for Gregorian Chant. Some consider these peculiar PLAINSONG ACCOMPANIMENTS—with 3-part harmonies by Barcelona Cathedral organist, Father Josep Muset i Ferrer—to be the rarest in the world. Click here to learn more. Thanks Veronica! 😊

—Jeff Ostrowski

“Hidden Chant” • For the Ordinary Form

Not even the magnificent “GregoBase”—which is incredibly comprehensive—realizes music for this antiphon was published by the Vatican in the 1930s.

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—Jeff Ostrowski

“Reader Feedback” • 22 June 2026

A reader wrote to us from Virginia: “I really appreciate the 23 harmonizations that you posted on CORPUS CHRISTI WATERSHED for the Daily, Daily, Sing to Mary hymn. I hope to find willing voices in our small Schola Cantorum to try the three-voice version. Carry on, sir! You’re doing the Lord’s work.” While we don’t know this gentleman personally, we note that he earned a Ph.D. (which demonstrates that our blog has something for everybody). 😊

—Corpus Christi Watershed

Time and Again We Are Asked…

John Baptist Singenberger (d. 1924) was a central figure of Catholic Church music. In this utterly fascinating excerpt (Single-Page PDF), Singenberger writes: Time and again we are asked: “Is the Gregorian chant to be accompanied by the organ?” As a young student in Saint Gall, Singenberger befriended SEBASTIAN GEBHARD MESSMER, the future Archbishop of Milwaukee (Wisconsin). The two graduated together in 1861. The school they attended (Saint George’s Seminary) was a “seminary”—but in the older European sense. In other words, it provided a classical education without necessarily leading to ordination. Singenberger remained a layman his whole life, but Messmer was eventually made archbishop—by Pope Saint Pius X—of the very archdiocese in Wisconsin where Singenberger would spend his American career, giving him a powerful ecclesiastical ally.

—Jeff Ostrowski

“Reminder” — Month of June (2026)

On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). Since we were founded in 2006, not one of our board members has ever accepted any remuneration whatsoever—not a penny. We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.

—Jeff Ostrowski

Consociatio Internationalis Musicae Sacrae

These Photographs Are Utterly Astounding !

Public Criticism of Jeff Ostrowski’s Singing Voice • Also: “Dich König loben wir”

“The Unselected Hymn” • Do You Recognize It?

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