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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

Msgr. Knox • “Ten Commandments” for Crime Stories

Jeff Ostrowski · November 29, 2017

3779 Ronald Arbuthnott Knox OME READERS will remember I’m currently serving on a committee to create the St. Jean de Brébeuf Hymnal, which is turning out to be a marvelous and unique collection. One book that comes up constantly in our research is the 1939 edition of the Westminster Hymnal, which is quite different than Terry’s 1912 edition. (Feel free to download the 1939 edition here.)

With the possible exception of Dom Andrew Gregory Murrary (d. 1992), the person exerting the greatest influence on the creation of the New Westminster Hymnal was Msgr. Ronald Knox (d. 1957).

I recently stumbled upon the “Decalogue for Writers of Detective Stories” by Msgr. Knox:

Ten Commandments of Detective Fiction :

1.

The criminal must be mentioned in the early part of the story, but must not be anyone whose thoughts the reader has been allowed to know.

2.

All supernatural or preternatural agencies are ruled out as a matter of course.

3.

Not more than one secret room or passage is allowable.

4.

No hitherto undiscovered poisons may be used, nor any appliance which will need a long scientific explanation at the end.

5.

No Chinaman must figure in the story.

(N.B. Google “mysterious Chinaman”—a cliché of the genre.)

6.

No accident must ever help the detective, nor must he ever have an unaccountable intuition which proves to be right.

7.

The detective himself must not commit the crime.

8.

The detective is bound to declare any clues which he may discover.

9.

The “sidekick” of the detective, the Watson, must not conceal from the reader any thoughts which pass through his mind: his intelligence must be slightly, but very slightly, below that of the average reader.

10.

Twin brothers, and doubles generally, must not appear unless we have been duly prepared for them.

Knox was a founding member of the DETECTION CLUB and wrote several works of detective fiction, including five novels. The Detection Club was formed in 1930 by a group of British mystery writers, including Agatha Christie, Dorothy Sayers, and Ronald Knox. The first president was G. K. Chesterton. In addition to meeting for dinners and helping each other with technical aspects in their individual writings, the members of the club agreed to adhere to a code of ethics in their writing to give the reader a fair chance at guessing the guilty party. These fair-play “rules” were summarized by one of the members, Ronald Knox, in an introduction to an anthology of detective stories. They were never intended as more than guidelines, and not all the members took them seriously. (These are the ten rules listed above.)

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

Filed Under: Articles Tagged With: Andrew Gregory Murray d 1992, Dom Gregory Murray, Monsignor Ronald Knox Traditional Mass 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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President’s Corner

    PDF Download • “Sprinkling Rite”
    Liturgical reformers who gained power after Vatican II frequently caused great suffering to musicians. With the stroke of a pen, they sometimes make changes that would require thousands—or even millions—of man hours (work undertaken by composers and editors). The Sprinkling Rite during Eastertide is but one tiny example. The version given in that PDF document was the original melody for Roman Missal, Third Edition. Some still prefer that version. However, at the last moment, an “unknown hand” tinkered with a few notes in the antiphon. Those who examine the current edition can verify this with their own eyes.
    —Jeff Ostrowski
    ‘Sarum’ Good Friday?
    Plainsong of the Roman Rite has many variants—i.e. slight ‘variations’ or ‘alterations’ made to the ancient melodies. Variants often thrive in particular religious orders. Likewise, before Henry VIII broke away from the Catholic Church, Gregorian Chant variants were frequently associated with individual cathedrals in England: Hereford, Lincoln, Salisbury, and so forth. In the early 20th century, the (Anglican) organist at Westminster Abbey married “Let All Mortal Flesh Keep Silence” to this beautiful variant melody from England. Those who sing Gregorian Chant on Good Friday will recognize the melody. What do you think of this pairing?
    —Jeff Ostrowski
    PDF Download • “Eb Organ Postlude”
    Gustav Adolf Merkel (d. 1885) was a German organist, teacher, and composer. Although a Lutheran himself, he held the appointment at the (Roman Catholic) Cathedral of Dresden from 1864 until his death. You can download his Organ Postlude in E-Flat, which I like very much. He has an interesting way of marking the pedal notes. What do you think?
    —Jeff Ostrowski

Quick Thoughts

    “Gregorian Chant Quiz” • 24 March 2026
    How well do you know your Gregorian hymns? Do you recognize the tune inserted into the bass line on this score? For many years, we sang the entire Mass in Gregorian chant—and I mean everything. As a result, it would be difficult to find a Gregorian hymn I don’t recognize instantly. Only decades later did I realize (with sadness) that this skill cannot be ‘monetized’… This particular melody is used for a very famous Gregorian hymn, printed in the LIBER USUALIS. Do you recognize it? Send me an email with the correct words, and I promise to tell everybody I meet about your prowess!
    —Jeff Ostrowski
    PDF Download • “Ubi Caritas” (SATB)
    I remember singing “Ubi Cáritas” by Maurice Duruflé at the conservatory. I was deeply moved by it. However, some feel Duruflé’s version isn’t suitable for small choirs since it’s written for 6 voices and the bass tessitura is quite low. That’s why I was absolutely thrilled to discover this “Ubi cáritas” (SATB) for smaller choirs by Énemond Moreau, who studied with OSCAR DEPUYDT (d. 1925), an orphan who became a towering figure of Catholic music. Depuydt’s students include: Flor Peeters (d. 1986); Monsignor Jules Van Nuffel (d. 1953); Arthur Meulemans (d. 1966); Monsignor Jules Vyverman (d. 1989); and Gustaaf Nees (d. 1965). Rehearsal videos for each individual voice await you at #19705. When I came across the astonishing English translation for “Ubi Cáritas” by Monsignor Ronald Knox—matching the Latin’s meter—I decided to add those lyrics as an option (for churches which have banned Latin). My wife and I made this recording to give you some idea how it sounds.
    —Jeff Ostrowski
    PDF Download • “Holy, Holy, Holy”
    For vigil Masses on Saturday (a.k.a. “anticipated” Masses) we use this simpler setting of the “Holy, Holy, Holy” by Monsignor Jules Vyverman (d. 1989), a Belgian priest, organist, composer, and music educator who ultimately succeeded another ‘Jules’ (CANON JULES VAN NUFFEL) as director of the Lemmensinstituut in Belgium. Although I could be wrong, my understanding is that the LEMMENSINSTITUUT eventually merged with “Catholic University of Leuven” (originally founded in 1425). That’s the university Fulton J. Sheen attended.
    —Jeff Ostrowski

Random Quote

“There are no hymns, in this sense, till the fourth century; they were not admitted to the Roman office till the twelfth. No Eastern rite to this day knows this kind of hymn. Indeed, in our Roman rite we still have the archaic offices of the last days of Holy Week and of the Easter octave, which—just because they are archaic—have no hymns.”

— Adrian Fortescue (25 March 1916)

Recent Posts

  • PDF Download • “Sprinkling Rite”
  • ‘Sarum’ Good Friday?
  • Gregorian Chant • The “Correct” Way of Singing ?
  • PDF Download • “Eb Organ Postlude”
  • Fulton J. Sheen • “24-Hour Catechism”

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