Mark Thomas,
Music Director



Mark Thomas has worked extensively in six states, over the course of 30 years as a jazz and classical pianist, organist, conductor, composer, bandleader, percussionist and studio musician. For 19 years he was the music director for three different cathedrals and their dioceses before returning to Colorado to serve St. Thomas Aquinas as music director in September of 2009. One of his greatest passions is inspiring people from all walks of life, amateur and professional musicians alike, in the mysteries of the faith through liturgical music. 

Mark has performed concerts in San Francisco, Chicago, New York and Boston and was the house jazz pianist and band-leader at the renown White Barn Inn in Kennebunkport, Maine, playing weekly for celebrities and dignitaries which included two presidents. He has premiered music for organ by Philip Glass, Arvo Pärt, Henryk Gorecki and Morton Feldman, and has conducted numerous US premieres of Irish composer Michael McGlynn’s choral music as well as the North American premieres of Arvo Pärt’s The Beatitudes and Pärt’s epic Berlin Mass for choir and orchestra. His own compositions have been performed around the world with milestones at St. Peter’s Basilica at the Vatican, San Marco in Venice, Trinity College in Dublin, Boijmans Van Beuningen Musem in Rotterdam, St. Stephen’s Cathedral in Budapest, the Basilica of the National Shrine in Washington, King’s Chapel in Boston, the St. Lawrence Center at the University of Kansas and by the Charleston Symphony Orchestra and the Spoleto Festival, and the Grand Rapids Symphony Orchestra.  His composition, Ave Maris Stella published by Earth Songs, was featured at the annual conference of the American Choral Directors Association (ACDA) and his own organ compositions have been presented on American Public Media’s Pipedreams. Undergraduate studies were at the University of Dayton, he received a master’s degree in composition from CU Boulder and did doctoral work at SUNY Buffalo.  He and his wife Leanne have two children and six grandchildren that are the joy for their hearts



Leanne Thomas,
Administrative Magic Fairy


Dennis Fromholzer,
Assistant Organist


The Choirs

The Choirs

Sunday 9:00 AM Mass:WOMEN’S SCHOLA
(usually with strings; year round)

Rehearsal         Sunday 8:30 AM (before Mass, rehearsal room)
                            Individual/private rehearsal prior to  Sunday rehearsal is expected

Repertoire        Chant/hymns/songs/acclamations,
                            SA choral music

Sunday 11:00 AM Mass: PRINCIPAL CHOIR
(usually with strings; year round)

Rehearsal         Sunday 10:30 AM (before Mass, rehearsal room)
                           Thursday, 7:00 – 8:30 PM

Repertoire       Chant/hymns/songs/acclamations, SATB choral music

Sunday 6:00 PM Mass: CONTEMPORARY ENSEMBLE and CHOIR (reflects CU schedule)

Rehearsal         Sunday 4:30 PM (before Mass, Church)

Repertoire        Praise and Worship, contemporary, revised hymns, world music


Sunday 9:00 PM Candlelight Mass:
SCHOLA with featured instruments
(reflects CU schedule)

Rehearsal         Sunday 8:00 PM (before Mass, Church or Hall)

Repertoire        Chant/hymns/songs/acclamations, SATB choral, instrumental music

Tuesday 9:00 PM Candlelight Mass: SCHOLA CANTORUM(reflects CU schedule)

Rehearsal         Tuesday 8:00 PM (before Mass, Hall)
                            Individual/private rehearsal prior to Schola rehearsal is required

Repertoire        Chant/polyphony, SATB choral, new choral music, Latin Ordinary

Get Involved 

Name *