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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

Square Note App

Fr. David Friel · April 9, 2017

ELL PHONES and other mobile devices these days serve manifold purposes. For some, they double and triple as cameras and internet browsers. For others, they also function as gaming devices, tip calculators, searchable Rolodexes, stereo systems, navigation systems, and portable televisions. But, have you ever used your mobile device as a Graduale Romanum?

Now you can, if you would like.

Recently, I stumbled upon an app called Square Note, which markets itself to church musicians and those who wish to learn more about chant. The app allows users to see a wide array of chants, with their texts and square notation. The chants are grouped in four major sections.

First, the Mass propers for the Ordinary Form encompass the whole temporal cycle and part of the sanctoral. Secondly, Mass propers are also available for the temporal cycle of the Extraordinary Form. Also included is a Kyriale section complete with all eighteen chant Masses and six chant creeds. Finally, the app offers a collection of “Other Chants,” which includes multiple versions of the Marian antiphons, certain Eucharistic chants, and several tones for the Te Deum.

One of the most useful features of the app is its capability of searching the texts of all the chants. Searches can be limited to the titles, or incipits, of the chants, or searches may be opened to include the full text of all the chants. For students of the liturgy, this tool is especially valuable.

Another feature that can be useful is the playback mode offered for each piece. Although this would unsettle purists, I can imagine the playback being useful for beginners. The tone quality of the playback is, of course, choppy and mechanistic, so its overuse ought to be avoided. I’ve known many schola directors who will not use a piano to find pitches or sound out passages, and there is real wisdom in their approach. For some, though, the playback mode offered in Square Note could be the help they need to get off the ground. Square Note even allows the user to adjust the pitch and tempo of the playback tool.

This app is the handiwork of Fr. Matthew Spencer, O.S.J. and Bro. Stephen Spencer, O.S.J., both members of the Holy Spouses Province of the Oblates of St. Joseph in the United States of America. It is a developing product, too, as more chants continue to be added to the collections.

The app is available for $2.99 in the Apple App Store or on Google Play. Click here to explore more fully the riches of this “Rituale in your pocket.”

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

Filed Under: Articles Tagged With: Graduale Romanum Roman Gradual Propers, Gregorian Chant, Propers, Resources for training in Church music Last Updated: January 1, 2020

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About Fr. David Friel

Ordained in 2011, Father Friel is a priest of the Archdiocese of Philadelphia and serves as Director of Liturgy at Saint Charles Borromeo Seminary. —(Read full biography).

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President’s Corner

    Responsorial Psalm Fauxbourdon?
    When it comes to singing Responsorial Psalms in Fauxbourdon, what does this sound like in practice? Can such a thing be done successfully with volunteer choirs in real Catholic parishes? Listen to this audio excerpt from Good Friday and see what you think. Our parish volunteer choir did so well this year—and the ceremonies were ‘standing room only’. For the record, that musical score can be downloaded (completely free of charge) from the flourishing feasts website.
    —Jeff Ostrowski
    Music List • (Easter Sunday, 2026)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for Easter Sunday—a.k.a. “Ad Missam in die Paschae”—which is 5 April 2026. Please feel free to download it as a PDF file if such a thing interests you. The Fauxbourdon for Communion is particularly moving.
    —Jeff Ostrowski
    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

Quick Thoughts

    PDF • “Liturgical Law” (467 Pages)
    On Good Friday during the middle ages, the pope privately recited THE ENTIRE PSALTER. If you don’t believe me, see for yourself by reading this passage by Dom Charles Augustine Bachofen (d. 1943). His famous book—called “Liturgical Law: A Handbook Of The Roman Liturgy”—was published by the Benjamin Herder Book Company, which was the American arm (operating out of St. Louis, Missouri) of one of the world’s most significant Catholic publishers. Dom Charles Augustine Bachofen was born in Switzerland but spent his career between the Benedictine monasteries at Conception (Missouri) and Mount Angel (Oregon). His 1931 masterpiece, Liturgical Law can be downloaded as a PDF file … 467 pages!
    —Jeff Ostrowski
    “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

Random Quote

[on Latin] “No change in Mass: people have missals and can read. More vernacular can be useful in the Sacraments: Baptism, Confirmation, Extreme Unction, Matrimony.”

— Cardinal Spellman (one of the Vatican II fathers)

Recent Posts

  • PDF Download • “Catholic Hymnal & Service Book” (632 Pages)
  • PDF • “Liturgical Law” (467 Pages)
  • Gregorian Chant … with Organ Accompaniment?
  • Responsorial Psalm Fauxbourdon?
  • Music List • (Easter Sunday, 2026)

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