33rd Sacred Music Colloquium 

 June 19-24, 2023  | Detroit, Michigan


The Church Music Association of America is pleased to announce the 33rd Annual Colloquium for Chant and Polyphony. This weeklong experience in the gorgeous and historic Old St. Mary’s and Wayne State University will immerse beginner to advanced singers, conductors, and clergy in the beauty of Sacred chant and polyphony.

Stunning liturgies, interactive choirs, and in-depth courses will grow your appreciation of sacred music and equip you with the tools and knowledge to bring it to your parish.

Dr. William Mahrt

Dr. William Mahrt

President of Church Music Association of America

Dr. Mahrt is Associate Professor and Director of Early Music Singers at the Center for Medieval and Early Modern Studies at Stanford University, President of the Church Music Association of America, and editor of Sacred Music, the oldest continuously published journal of music in North America.

Dr. Mahrt grew up in Washington State; after attending Gonzaga University and the University of Washington, he completed a doctorate at Stanford University in 1969. He taught at Case Western Reserve University and the Eastman School of Music, and then returned to Stanford in 1972, where he continues to teach early music. Since 1964 he has directed the choir of St. Ann’s Chapel in Palo Alto, which sings mass and vespers in Gregorian chant on all the Sundays of the year, with masses in the polyphonic music of Renaissance masters for the holy days.

His research interests include theory and performance of Medieval and Renaissance music, troubadours, Machaut, Dufay, Lasso, Dante, English Cathedrals, Gregorian chant, and Renaissance polyphony. He has published articles on the relation of music and liturgy, and music and poetry. He frequently leads workshops in the singing of Gregorian chant and the sacred music of the Renaissance.

Maggie Gallagher

Maggie Gallagher

Executive Director of the Benedict XVI Institute

Maggie Gallagher, Executive Director for the Benedict XVI Institute will join us on Friday, September 16 and give a talk about her work with the Institute, the recent highly successful Sacra Liturgia Conference and the Archdiocese of San Francisco during our dinner that evening.

Maggie Gallagher’s experience includes successfully founding two nonprofit organizations, The National Organization for Marriage and the Institute for Marriage and Public Policy. She was also a founding editor of two magazines: the online The National Pulse (which grew quickly under her leadership to 450,000 Facebook likes), and the Manhattan Institute’s quarterly journal of urban policy, The City Journal.

She was a nationally syndicated columnist for 17 years, an editor and a columnist at National Review, and the author or co-author of four books, most recently Debating Same-Sex Marriage (Oxford University Press, 2012).

Fr. Samuel Weber

Fr. Samuel Weber

Faculty at St. Patrick's Seminary

In addition to teaching at St. Patrick Seminary, Father Weber has served as the founding director of the Institute of Sacred Music in the Archdiocese of St. Louis and Magister choir of the Cathedral-Basilica of Saint Louis.

He has served as a faculty member at Kenrick-Glennon Seminary, Wake Forest Divinity School, and St. Meinrad’s College. He received the Licentiate in Sacred theology with a specialization in sacred liturgy and monastic spirituality from the Pontifical Athenaeum Sant’Anselmo in Rome. He studied Gregorian Chant with Dom Eugene Cardine as well as music history and composition at the American Conservatory of Music in Chicago.

His collection of English Chants, The Proper of the Mass for Sundays and Solemnities, published by Ignatius Press, has been a valuable tool for church musicians for several years.

Dr. Jennifer Donelson-Nowicka

Dr. Jennifer Donelson-Nowicka

Associate Professor and the Director of Sacred Music at St. Patrick’s Seminary


Jennifer Donelson-Nowicka is an associate professor and the director of sacred music at St. Patrick’s Seminary in Menlo Park, California, where she holds the William P. Mahrt chair in sacred music.

Donelson-Nowicka serves as a Consultant to the USCCB’s Committee on Divine Worship.

As a choral conductor, Donelson-Nowicka has directed collegiate, semi-professional, amateur, monastic, and children’s choirs.

Dr. Donelson-Nowicka is currently working on a project to adapt the Gregorian chants of the Mass proper for the Spanish languageShe also hosts a weekly podcast entitled “Square Notes: The Sacred Music Podcast.”

Dr. Horst Buchholz

Dr. Horst Buchholz

Director of Sacred Music at the Archdiocese of Detroit and the Cathedral of the Most Blessed Sacrament in Detroit, MI

Dr. Horst Buchholz received his first musical training in a boys’ choir in his native Germany and studied organ and sacred music at the Berlin College of Church Music and the University of Arts, and received his Doctor of Music degree in conducting from the Indiana University School of Music.

Dr. Buchholz has held positions in cathedrals and churches throughout the United States and Europe, including the Cathedral Basilica of the Immaculate Conception in Denver, Colorado. He was Music Director of the Denver Philharmonic Orchestra, and has made organist and guest conductor appearances with the Colorado Symphony and Opera Colorado and has performed in major cathedrals and concert halls around the world. He has served as a member of the organ faculty at Cleveland State University; Associate Professor of Music and Director of Schola Cantorum at St. John Vianney Seminary (Denver); conducting professor and organ faculty member at Lamont School of Music at the University of Denver.  He is also Vice-President of the Church Music Association of America.

David Hughes

David Hughes

Organist & Choirmaster at St. Patrick’s Parish and Oratory in Waterbury, Connecticut

David Hughes is a composer, conductor, and organist who is in international demand as a recitalist and an instructor of Gregorian chant.


He served for thirteen years as Organist & Choirmaster at St. Mary’s Church in Norwalk, Connecticut, where he developed a program of seven choirs, including the professional St. Mary’s Schola Cantorum, the volunteer St. Mary’s Choir, and the St. Mary’s Student Schola, a comprehensive program of musical education for children. He directs Viri Galilæi, an ensemble of men from the tristate New York area who gather weekly to sing Vespers and medieval polyphony from facsimiles of original manuscripts. Hughes is Director of Music at St. John Fisher Seminary in Stamford, Connecticut, and serves as a consultant to several parishes in Connecticut looking to expand their musical programs.

Hughes’s composition teachers have included Ruth Schonthal and John Halle, and he has studied organ with Paul Jacobs and Daniel Sullivan. He is a graduate of Yale College.

Jennifer Donaldson Conducts Schola learn sacred music fall workshop Church Music Association of America


Members of the CMAA receive special discounts on all CMAA events including the Colloquium.