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Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”

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Views from the Choir Loft

What Palestrina Did With Kyrie II (“Fons Bonitatis”)

Jeff Ostrowski · January 15, 2020

AGNIFICENT! There is no other word for it. I am speaking of the Palestrina’s Kyrie based on the Gregorian Kyrie II (“Fons Bonitatis”), which is divided—as you might guess—into three marvelous sections. You can listen all three sections by visiting Lalemant Polyphonic and scrolling to 81668. I strongly encourage you to do this!  And just where does “Kyrie Fons Bonitatis” come from?  We remember that prior to the Council of Trent, the prayers at Mass were “troped.” Many erroneously believe the Kyrie was the only thing troped, but that’s not even close to true. The Gloria, Sanctus, Agnus Dei—and even the readings!—were troped.

Here’s a rehearsal video we made for Part 1 of 3. (I again humbly request that you go listen to the other sections, as well.)


Kyrie II (“Fons Bonitatis”) has remained remarkably stable. Look how it appeared in Cantus Varii, a marvelous collection by Solesmes printed in 1928:

— PDF Download • Kyrie II (1928)

A 2011 publication from Germany seemingly copied this 1928 edition without any changes, although it inserted “tropeless” Editio Vaticana repetitions which puzzle me:

— PDF Download • Kyrie II (Germany, 2011)

A 2016 publication with variations from the Sarum Use also seemingly copied the 1928 version verbatim, with a few very minor changes (e.g. Pneumáte instead of Pnéumatis):

— PDF Download • Kyrie II (Sarum Use)

In the most wonderful way, Palestrina derives his polyphonic lines from the complicated chant melodies of Kyrie II.  For example:

HENEVER POSSIBLE, we must locate the version (“variant”) of the plainsong which Palestrina was looking at when he wrote his Mass. But which version was it? This question is sometimes impossible to answer because we know so little about the lives of the Renaissance composers. However, as I mentioned earlier, Kyrie II is relatively “stable” compared to other chants, so we can be fairly certain the version Palestrina had before him is similar to what we have in the Editio Vaticana.

Consider this version from the 14th century:

 

Here’s one from the late 15th century:

80360-Palestrina-Kyrie-Fons-Bonitatis-late-15th-century

 

Another version from the 15th century:

 

A version from 1525AD:

 

Here is a version from 1580AD:

 

A version from 1591AD:

 

Here is a version from the 16th century:

 

Another from the 16th century:

 

Here’s the version Dr. Peter Wagner chose in his 1903 Kyriale:

80359-Peter-Wagner-Gregorian-Kyrie-ii-edit

 

And here’s the version Mocquereau chose for his 1903 Liber Usualis. Notice the spots where it differs from Pothier’s Editio Vaticana:

80358-1904-Mocquereau-LIBER-USUALIS

Here is the 1863 edition by Father Hermesdorff, the teacher of Peter Wagner (considered a “corrupt” edition of plainsong):

 

 

Here is another “corrupt” version of Kyrie II printed in 1857:

 

The particular way Palestrina places the chant melodies from Kyrie II into his version is stunning. I was going to say Part 3 was my favorite, but Part 2 is also magnificent—and so is Part 1. So it’s all my favorite! The rehearsal videos we made simply don’t do justice to this masterpiece.

In grad school I remember thinking Palestrina wasn’t as interesting as certain other composers; but I was dead wrong.

By the way, here is a (pretty terrible) organ accompaniment for “Kyrie Fons Bonitatis” by Dr. Auguste Le Guennant (d. 1972)

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

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Filed Under: Articles Tagged With: Cantus Selecti, Cantus Varii, Giovanni Pierluigi da Palestrina, Medieval Manuscripts Last Updated: August 1, 2022

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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

    New Bulletin Article • “14 September 2025”
    My pastor requested that I write short articles each week for our parish bulletin. Those responsible for preparing similar write-ups may find a bit of inspiration in these brief columns. The latest article (dated 14 September 2025) discusses OFFERTORY ANTIPHONS and contains a wonderful quote by Archbishop Fulton J. Sheen.
    —Jeff Ostrowski
    PDF Download • Draft Copy (Pamphlet)
    A few days ago, I posted a draft copy of this 12-page pamphlet with citations about the laity’s “full, conscious, and active participation.” Its basic point or message is that choir directors should never feel embarrassed to teach real choral music because Vatican II explicitly ordered them to do that! We’ve received tons of mail regarding that pamphlet, with many excellent suggestions for improvement. Please feel free to chime in!
    —Jeff Ostrowski
    “Entrance Chant” • 23rd (Ordinary Time)
    This coming Sunday, 7 September 2025, is the 23rd Sunday in Ordinary Time (Year C). You can download the “Entrance Chant,” conveniently located at the feasts website. I also recorded a rehearsal video for it (freely available at the same website). The Communion Chant includes gorgeous verses in FAUXBOURDON. I attempted to create a rehearsal video for it, and it’s been posted at the feasts website, called by some: “church music’s best kept secret.”
    —Jeff Ostrowski

Quick Thoughts

    Karl Keating • “Canonization Questions”
    We were sent an internet statement (screenshot) that’s garnered significant attention, in which KARL KEATING (founder of Catholic Answers) speaks about whether canonizations are infallible. Mr. Keating seems unaware that canonizations are—in the final analysis—a theological opinion. They are not infallible, as explained in this 2014 article by a priest (with a doctorate in theology) who worked for multiple popes. Mr. Keating says: “I’m unaware of such claims arising from any quarter until several recent popes disliked by these Traditionalists were canonized, including John XXIII, Paul VI, and John Paul II. Usually Paul VI receives the most opprobrium.” Mr. Keating is incorrect; e.g. Father John Vianney, several centuries ago, taught clearly that canonizations are not infallible. Archbishop Fulton J. Sheen would be another example, although clearly much more recent than Saint John Vianney.
    —Corpus Christi Watershed
    Vatican II Changed Wedding Propers?
    It’s often claimed that the wedding propers were changed after Vatican II. As a matter of fact, that is a false claim. The EDITIO VATICANA propers (Introit: Deus Israel) remained the same after Vatican II. However, a new set of propers (Introit: Ecce Deus) was provided for optional use. The same holds true for the feast of Pope Saint Gregory the Great on 3 September: the 1943 propers (Introit: Si díligis me) were provided for optional use, but the traditional PROPRIA MISSAE (Introit: Sacerdótes Dei) were retained; they weren’t gotten rid of. The Ordo Cantus Missae (1970) makes this crystal clear, as does the Missal itself. There was an effort made in the post-conciliar years to eliminate so-called “Neo-Gregorian” chants, but (contrary to popular belief) most were retained: cf. the feast of Christ the King, the feast of the Immaculate Conception, and so forth.
    —Corpus Christi Watershed
    Solemn “Salve Regina” (Chant)
    How many “S” words can you think of using alliteration? How about Schwann Solemn Salve Score? You can download the SOLEMN SALVE REGINA in Gregorian Chant. The notation follows the official rhythm (EDITIO VATICANA). Canon Jules Van Nuffel, choirmaster of the Cathedral of Saint Rumbold, composed this accompaniment for it (although some feel it isn’t his best work).
    —Corpus Christi Watershed

Random Quote

Many declare that Vatican Council II brought about a true springtime in the Church. Nevertheless, a growing number of Church leaders see this “springtime” as a rejection, a renunciation of her centuries-old heritage, or even as a radical questioning of her past and Tradition. Political Europe is rebuked for abandoning or denying its Christian roots; but the first to have abandoned her Christian roots and past is indisputably the post-conciliar Catholic Church.

— ‘Pope Francis’ Chief Liturgist (31 March 2017)’

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