- Analecta hymnica medii aevi, volume 1, edited by Guido Maria Dreves (Leipzig: Fues’s Verlag (R. Reisland), 1886). Available at Internet Archive and Open Library.
- Analecta hymnica medii aevi, volume 2, edited by Guido Maria Dreves (Leipzig : Fues’s Verlag (R. Reisland), 1886). Available at Internet Archive
- Antiphonarium Romanum juxta ritum sacrosanctæ Romanæ Ecclesiæ [possibly: The Roman Antiphonary according to the rite of the most holy Roman Church] (1864). From microfilm. Available at Internet Archive.
- Arundel Hymns, chosen and edited by Henry Fitzalan-Howard, 15th Duke of Norfolk and Charles T. Gatty (London : Boosey & Co., 1905?). Available at Open Library and Internet Archive. [N.B., The title page is missing. It has no Imprimatur, but has a letter from Pope Leo XIII dated June 8, 1898 praising the work, which ah do duhclare is rather sufficient proof of fidelity.]
- Byzantine Catholic Hymnal: Traditional Spiritual Songs and Hymns of the Divine Liturgy in English and Slavonic (Pittsburgh, PA: Metropolitan Cantor Institute/ Byzantine Catholic Seminary, 2007). Available in PDF format (on this page) at the Byzantine Catholic Archeparchy of Pittsburgh.
- Cantiques à St. Joseph dédiés à la jeunesse canadienne. Suivis de pieux exercices en l’honneur du même saint et des saints anges [Songs to St. Joseph dedicated to Canadian youth. Followed by devotions in honor of that saint and the holy angels] (Montreal: J. Lovell, 1862). With approbation of the bishop of Montreal. Available at Open Library and Internet Archive (Digitizing sponsor: University of Ottawa, Book contributor: Faculty of Music, University of Toronto)
- Cathedral chants of the XVI, XVII & XVIII centuries, edited by Edward F. Rimbault (London: D’Almaine, 1844). Available at Internet Archive.
- The Catholic Choirbook: Anthology I, edited by Ellen Doll Jones and Noel Jones (Englewood, TN: Frog Music Press). May be downloaded (through this page) from Frog Music Press; and available in PDF format (on this page) of the Choir of Saint Columba’s Catholic Church, Glasgow.
- [N.B.1, The text states: “This choirbook is created under the protection of Creative Commons 3.0, which permits freely copying and sharing of the contents of this book but does not permit the publishing of Creative Commons music and text from this book for commercial purpose without permission.”]
- [N.B.2, We earnestly recommend purchasing the text or giving a donation to its editors. Indeed they generously made it free, saying in the Catholic Choirbook: “Please download the book and copy from it and share it with everyone you know. It is legal, you have our permission to do this and we encourage you to do this.” However, we think it would be good to support their holy work. As they said on their website: “Why purchase? It is less expensive for us to print and ship these to you than copying and binding them yourselves…and we make a bit of profit, which supports the project for all of those choirs who have no money to buy music. Those who choose to download have the option of making a donation only if they are able.”]
- Catholic Church Hymnal: With Music (New York: J. Fischer & Bro., 1905). With Imprimatur. Available at Internet Archive, with a second copy here, and a third copy here.
- Catholic Church Music, by Richard R. Terry, 1865-1938 (London: Greening & Co., 1907). With Imprimatur. Available in pdf format on this page at Musica Sacra (linked by by this page at Corpus Christi Watershed), and on this page of Sancta Missa. Also available in pdf, mobi, epub, and other formats at Internet Archive, with a 2nd copy at Internet Archive, a 3rd copy at Internet Archive, and a 4th copy at Internet Archive.
- Catholic Hymns for Youthful and Infant Minds; to which are added, a Few Poems on Subjects Interesting to Catholic Readers, by M. A. P (London : T. Jones, 1847). May be read online, and available in various formats (pdf, epub, mobi/kindle, etc.), at Internet Archive.
- A complete and practical method of the Solesmes plain chant. From the German of the Rev. P. Suitbertus Birkle, O. S. B., adapted and ed. by A. Lemaistre with the authorization of the author (New York: Joseph F. Wagner, 1904). With Imprimatur. Available at Open Library and Internet Archive.
- Complete Vespers for the Feasts of the B. V. M. [Blessed Virgin Mary], by Rev. Edward J. Murphy (1912). With Imprimatur. [N.B. This appears to be a guide for vocalizing in Latin following the Roman-Italian pronunciation.]. Available at Open Library and Internet Archive.
- The De La Salle Hymnal, for Catholic Schools and Choirs, by the Brothers of the Christian Schools (New York: La Salle Bureau, 1913). With Imprimatur. May be read online, and available in pdf, mobi/kindle, epub, and other formats, at Internet Archive. The hymns may be read online at Hymnary.org.
- The Fundamentals of Gregorian Chant: A Simple Exposition of the Solesmes Principles Founded Mainly on “Le Nombre Musical Grégorien” of Dom André Mocquereau, by Lura F. Heckenlively (Tournai, Belgium: Society of St. John Evangelist, Desclée & Co., 1900). Available at Open Libraryand Internet Archive.
- Geschichte des katholischen Kirchenliedes: von seinen ersten Anfängen bis auf die Gegenwart, by Karl August Beck (Cologne: M. DuMont-Schauberg, 1878). From microfilm. Available at Open Library and Internet Archive
- A Grammar of Plainsong: in two parts, by the Benedictines of Stanbrook [Abbey] (London: Burns & Oates, Art & Book Co.; New York, Cincinnati, Chicago: Benziger Brothers, 1905). With Imprimatur. Available at Open Library and Internet Archive.
- Gregorian Chant for Church and School, by Sister Mary Antonine Goodchild, O.P. (Boston, New York, Chicago, Atlanta, Dallas, Columbus, San Francisco, Toronto, London: Ginn and Company, 1914). With Imprimatur. Available in PDF format (144 pages) on this page of the Church Music Association of America.
- Gregorian music: an outline of musical palæography illustrated by fac-similes of ancient manuscripts, by the Benedictines of Stanbrook [Abbey] (London; Leamington: Art and Book Company; New York: Benziger Brothers 1897). Available at Internet Archive and Open Library.
- Guidelines for Music at Funerals, prepared by the Office of Liturgy of the Archdiocese of New York, November 2014 (Yonkers, NY: Archdiocese of New York Office of Liturgy, 2014). Available in pdf format at the Archdiocese of New York Office of Liturgy.
- A Handbook of Church Music: a practical guide for all those having the charge of schools and choirs, and others who desire to restore plainsong to its proper place in the services of the Church, by F. Clement C. Egerton, with a preface by H.G. Worth (London: R. & T. Washbourne, c1909). With Imprimatur. Available on Internet Archive (Digitizing sponsor: MSN; Book contributor: Faculty of Music Library, University of Toronto).
- ‘The “Hermeneutic of Continuity” and Twentieth-Century Legislation on Sacred Music’, by Philip Carl Smith, Antiphon 13.3 (2009): 247-263. Available in PDF format on this page of the Society for Catholic Liturgy.
- Instruction “Musicam Sacram” on Sacred Music in the Liturgy, by the Sacred Congregation of Rites (March 5, 1967). May be read online at the Catholic Liturgical Library.
- Jesus and Mary; or, Catholic Hymns, by Frederick William Faber (London: James Burns; Derby: Richardson and Son, 1849). Available at Internet Archive; at Google Books with a second copy at Google Books; and at HathiTrust Digital Library. Also available at Forgotten Books (with some pages accessible only by members). Another edition, Jesus and Mary; or, Catholic Hymns, for Singing or Reading, by Frederick William Faber (London: Richardson and Son, 1852), is available at Google Books.
- Jesus and Mary; or, Catholic Hymns, by Frederick William Faber (London: James Burns; Derby: Richardson and Son, 1849). Available at Internet Archive; at Google Books with a second copy at Google Books; and at HathiTrust Digital Library. Also available at Forgotten Books (with some pages accessible only by members). Another edition, Jesus and Mary; or, Catholic Hymns, for Singing or Reading, by Frederick William Faber (London: Richardson and Son, 1852), is available at Google Books.
- Liber usualis, Missae et officii pro Dominicis et festis duplicibus: cum cantu Gregoriano, editio Solemensis (Rome, Tournai: Society of Saint John the Evangelist/Descleé, Lefebvre & Co., Publishers to the Holy See and Printers to the Sacred Congregation of Rites, 1903). With Imprimatur, and with letter of approbation from Pope Leo XIII addressed to Paul Delatte, O. S. B., Abbot of Solesmes. Available at Internet Archive. The 1924 edition (with modern notation with a five line staff, publisher number 780c) is available in PDF format at Quilisma Publications. [Written in Latin. The title translates in English as Liber usualis, of Mass and the office for Sundays and double feasts, with Gregorian chant, edition of the Benedictine Monastery Solesmes]
- The Liber Usualis, with Introduction and Rubrics in English, edited by the Benedictines of Solesmes (Tournai, Belgium; New York: Desclee Company, Printers to the Holy See and the Sacred Congregation of Rites, 1961) May be downloaded in PDF format at Musica Sacra and at Sancta Missa (online publication provided by the Church Music Association of America). Sancta Missa describes the Liber Usualis thus: “Gregorian Chant for Every Mass of the Year: The Liber Usualis contains the complete Latin settings of Gregorian Chant for every Mass of the year (Sundays, Solemnities, Commons and Feasts) as well as for Nuptial Masses, Requiem Masses, Holy Week, and Ordination. Additionally it provides much of the Gregorian Chant to be sung in Latin for the Divine Office (Vespers, Compline, etc.), as well as many other traditional Latin chants and hymns (Litanies, Benediction, etc.).”
- List of approved church music for the archdiocese of Westminister (London: Burns & Oates 1907). Available at Open Library and Internet Archive.
- Magister choralis. A theoretical and practical manual of Gregorian chant for the use of the clergy, seminarists, organists, choir-masters, choristers, &c., by Rev. Franz Xaver Haberl, second English edition, translated from the ninth German edition by Most Rev. Dr. [Nicholas] Donnelly, Bishop of Canea and Vicar-General of Dublin (Ratisbon, New York, Cincinnati: F. Pustet; London: Burns & Oates; London: R. Washbourne; Dublin: M.W. Gill & Son, 1892). Available at Internet Archive and Open Library.
- A Manual of Gregorian chant compiled from the Solesmes books and from ancient manuscripts (Rome, Tournai (Belgium): Society of Saint John the Evangelist/Desclee, Lefebvre & Co., Publishers to the Holy See and Printers to the Sacred Congregation of Rites, 1903). With Imprimatur. Also with approbation from Pope Leo XIII addressed to Abbot Paul Delatte, O. S. B., of Solesmes. Available at Internet Archive and Open Library (which reports: “Includes the Ordinary of the Mass in Latin with an English paraphrase by Dom Gueranger, and a commentary in English on the religious service.”)
- Mémoire sur la nouvelle édition du Graduel el de l’Antiphonaire romains, publiée par ordre de Nosseigneurs les Archevêques de Reims et de Cambrai [possibly: Treatise on the new edition of the Roman Gradual and Antiphon, published by order of the Lord Archbishops of Reims and Cambrai] (Paris: J. Lecoffre, 1852). Available at Open Library and Internet Archive.
- Music: First Year, by Justine Ward and Elizabeth W. Perkins (Washington, D. C.: Catholic Education Press, 1920). Part of The Catholic Education Series. Available in pdf format on this page of Musica Sacra.
- Music as “Sacramental”: Foundations for a Theology of Music in the Spiritual Life, by Christina Marie Labriola (© Copyright by Christina Marie Labriola 2018). A Thesis for the degree of Doctor of Theology, Regis College and the University of Toronto. Available in pdf format on this page of the University of Toronto. (Note: The webpage states: “Items in TSpace are protected by copyright, with all rights reserved, unless otherwise indicated.”)
- A New Marian Hymnal: Traditional Spiritual Songs in English and Slavonic; from the Forthcoming Hymnal for the Byzantine (Ruthenian) Catholic Church (Metropolitan Cantor Institute—Byzantine Catholic Archeparchy of Pittsburgh, August 31, 2019). Available in pdf format on this page of the Metropolitan Cantor Institute of the Byzantine Catholic Archeparchy of Pittsburgh.
- A New School of Gregorian Chant, by the Rev. Dom. Dominic Johner. O.S.B. 2d English edition, translated from the 3d rewritten & enlarged German edition by Rev. W. A. Hofler. (Ratisbon, Rome, New York, Cincinnati: F. Pustet, 1914). With Imprimatur. Available at Internet Archive and Open Library, which notes: “Music in plainchant and white notation. Translation of Neue Schule des gregorianischen Choralgesanges.”
- Parish Book of Chant: A Manual of Gregorian Chant and a Liturgical Resource for Scholas and Congregations; including Order of Sung Mass for both Prdinary an Extarordinary Forms of the roman Rite; with a complete Kyriale, along with Chants and Hymns for Occasional and Seasonal Use and their literal English translations, expanded second edition, prepared by for the Church Music Association of America (2012). Available in pdf format (here) through this page of Musica Sacra, which also makes additional hymns available for download; and at Scribd. The hardcover printed copy may be purchased at Amazon. [The chants for the Missa Pro Defunctis may be found at nos. 155-170 on pp. 151-167 of the work.]
- Recent research in plainsong: a paper read to the members of the Plainsong and Mediæval Music Society, by Henry Bremridge Briggs (London: Vincent, 1898). Available at Open Library and Internet Archive. (N.B., The book has no Imprimatur, but the work has no apparent heterodoxy and the topic relates to the Church. The author is possibly a High Church Anglican and cites the musical research of the Benedictines of Solesmes.)
- Responsorial Psalm Accompaniments for the Saint Isaac Jogues Illuminated Missal, Lectionary, Gradual. Also entitled as St. Noël Chabanel Responsorial Psalms and as Chabanel Psalms (12 May 2014 edition). The entire work may be purchased as paperback or downloaded in pdf format through this page of Corpus Christi Watershed). The arrangements for individual psalms are available online and indexed on this page of Corpus Christi Watershed).
- The Roman Hymnal: A Complete Manual of English Hymns & Latin Chants, for the Use of Congregations, Schools, Colleges and Choirs, compiled and arranged by Rev. J.B. Young, S.J. (New York, Cincinnati: F. Pustet & Co., 1884). With Imprimatur. May be read online, and available in pdf, mobi, epub, and other formats at Internet Archive, with a 2nd copy at Internet Archive and a 3rd copy at Internet Archive.
- Sacred Music, Vol. 128, No. 4 (Winter 2001). Published by the Church Music Association of America. Includes the articles: “The Easter Triduum in Milan”, by Vincent A. Lenti; “The Mozarabic Chant Books of Cisneros”, by Dr. Angel Fernandez Collado; and “Reflections on the Liturgical Reform”, by Professor Roberto de Mattei. Available in pdf format (on this page) at Musica Sacra.
- The Saint Andrew Hymnal, Authorized by the Archbishops and Bishops of Scotland for Use in the Scottish Dioceses (Glasgow: John S. Burns & Sons, 1964). Digitized by Colin Edwin Jackson, F.S.C.O., May 2015. Available in pdf format through the post “PDF • Scottish Catholic Hymnal (453 Pages)”, by Jeff Ostrowski, 27 August 2018 at Corpus Christi Watershed.
- Saint Casimir’s Hymn to the Blessed Virgin, translated from the Latin by Rev. George A. Watson (St. Louis, Mo.: Chas. B. Woodward & Co., 1881). Available in Internet Archive and Open Library. [N.B., The Open Library mislabels the book as Les commencements de la gravure aux Pays-Bas.]
- Saint Isaac Jogues Illuminated Missal, Lectionary, Gradual: Sundays & Solemnities; Ordinary Form Mass (Sophia Institute Press, Nicolas Viel Publications, 2021). With Imprimatur. Published with the approval of the Committee on Divine Worship, United States Conference of Catholic Bishops. May purchased on this page of the Sophia Institute Press (linked by this page of Corpus Christi Watershed). May be downloaded on this page of Corpus Christi Watershed.
- Singing Chant: Latin and English: A Performance Manual, by Fr. Columba Kelly, OSB (Saint Meinrad, IN: Saint Meinrad Archabbey) (Copyright © 2015, 2017, Fr. Columba Kelly, OSB). Available in pdf format on this page of Saint Meinrad Archabbey.
- St. Basil’s Hymnal: containing music for vespers of all the Sundays and festivals of the year, three masses and over two hundred hymns together with litanies, daily prayers, prayers at mass, preparations and prayers for confession and communion, and the office and rules for sodalities of the Blessed Virgin Mary, compiled from approved sources [by the Basilian Fathers], 2nd edition (Toronto: St. Michael’s College, ca. 1891). With permission of superiors and approbation from various bishops. Available at Internet Archive and Open Library. The fourteenth edition (Toronto: St. Michael’s College; Medina, N.Y.: J. Brennan, ca. 1906) with Imprimatur and commendation from James Cardinal Gibbons is available in multiple formats at Internet Archive and Open Library. A microform of the 15th edition is available in multiple formats at Internet Archive and Open Library.
- The St. Gregory hymnal and Catholic choir book—singer’s edition, melody edition, compiled, edited, and arranged by Nicola A. Montani (Philadelphia : St. Gregory Guild, 1920). With Imprimatur. Available at Internet Archive.
- The Standard Catholic Hymnal, compiled, edited, and arranged by James A. Reilly (Boston, Mass.: McLaughlin & Reilly, 1921). With Imprimatur. Available in pdf format (here) through this page of Corpus Christi Watershed (and linked from this page of Top Catholic Songs.) [N.B., We have concluded that this work is in the public domain because it was published before 1923 (see the relevant webpage at the Cornell University Library Copyright Information Center). If this conclusion is incorrect, please comment immediately so we can remove the link. Thank you.]
- A Treasury of Catholic Song, comprising some two hundred hymns from Catholic sources old and new, gathered, edited and allotted to fitting tunes for congregational use by Sindey S. Hurlbut (New York: J. Fischer & Bro., 1915). Available at Internet Archive.
- The Winchester Troper, from MSS of the Xth and XIth Centuries, with other documents illustrating the history of tropes in England and France, edited by Walter Howard Frere (London: [Harrison and sons, printers], 1894). Available at Open Library and Internet Archive.
- The work of the Benedictines of Solesmes in the plainsong revival, by Henry Bremridge Briggs (London: Harrison and Sons, 1899). Available at Open Library and Internet Archive. (N.B., The book has no Imprimatur, but the work has no apparent heterodoxy and the topic relates to the Church, specifically the musical research of the Benedictines of Solesmes. The author is possibly a High Church Anglican.)