Views from the Choir Loft

William Byrd Composer

Jeff Ostrowski · April 4, 2024

Jeff Ostrowski To Leave Los Angeles!

I believe Catholics have a right to attend Mass without being aurally assaulted.

Jeff Ostrowski · March 25, 2024

William Byrd • “Mass for Five Voices”

Working with volunteers can be discouraging, but always remember there’s light at the end of the tunnel. Yesterday, during PALM SUNDAY MASS, our 100% volunteer choir pulled out the SANCTUS from William Byrd’s “Mass for Five Voices.” This colossal performance was the result. (They literally didn’t know I was going to have them sing that […]

Jeff Ostrowski · September 28, 2023

William Byrd • Simple “Agnus Dei” Canon

Time flies! Back in July, I posted a PDF setting of a perfect canon by William Byrd (d. 1623) arranged as an AGNUS DEI for three voices. Last Sunday, we sang that arrangement with our volunteer choir. To hear a ‘live’ recording of it, click here (Mp3). In my humble opinion, this would be a perfect […]

Jeff Ostrowski · September 18, 2023

William Byrd • “Mass for Five Voices”

Our volunteer choir is learning the “Sanctus” from William Byrd’s Mass for Five Voices. You can hear a short excerpt (recorded last Sunday) but please ignore the sound of babies crying: Mp3 recording. We still have work to do—but we’re on the right track. Once we have some of the tuning issues fixed, I desire […]

Dr. Alfred Calabrese · September 7, 2023

Dr. Alfred Calabrese on William Byrd’s “Sanctus” • (Mass for Five Voices)

“The Byrd Masses were printed without title pages, and with no reference to a composer. It was too dangerous to do so.” —Dr. Calabrese

Dr. Lucas Tappan · July 6, 2023

William Byrd: Quatercentenary of Death

“And yet I may live and die a true and perfect member of his holy Catholic Church without which I believe there is no salvation for me.” —William Byrd

Jeff Ostrowski · April 30, 2023

My Student Singing Byrd Will Make You Weep!

Today we release polyphony by two composers: William Byrd and William Fritz.

Music List • (2nd Sunday of Lent)

Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 2nd Sunday of Lent (1 March 2026). If such a thing interests you, feel free to download it as a PDF file. This feast has magnificent propers. Its somber INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with its fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.

—Jeff Ostrowski

Like! Like! Like!

You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.

—Jeff Ostrowski

Which Mass?

In 1905, when the Vatican Commission on Gregorian Chant began publishing the EDITIO VATICANA—still the Church’s official edition— they assigned different Masses to different types of feasts. However, they were careful to add a note (which began with the words “Qualislibet cantus hujus Ordinarii…”) making clear “chants from one Mass may be used together with those from others.” Sadly, I sometimes worked for TLM priests who weren’t fluent in Latin. As a result, they stubbornly insisted Mass settings were ‘assigned’ to different feasts and seasons (which is false). To understand the great variety, one should examine the 1904 KYRIALE of Dr. Peter Wagner. One should also look through Dom Mocquereau’s Liber Usualis (1904), in which the Masses are all mixed up. For instance, Gloria II in his book ended up being moved to the ‘ad libitum’ appendix in the EDITIO VATICANA.

—Jeff Ostrowski

Extreme Unction

Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.

—Corpus Christi Watershed

PDF Chart • “Plainsong Rhythm”

I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”

—Jeff Ostrowski

PDF • “O Come All Ye Faithful” (Simplified)

I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.

—Jeff Ostrowski