Classroom Music
General music, musicianship, listening, singing, movement, instruments, notation, creativity, and ensemble skills across grades 1–12.
Pianist · Theater Director · Music Educator
A collaborative pianist, theater director, music educator, and arts program builder whose work moves between professional performance, higher education, and the school stage.
About
Brett Klaus is a St. Louis–area collaborative pianist, theater director, music educator, vocal coach, and arts leader. His career has crossed concert performance, opera and musical theater, university instruction, K–12 music education, and the development of student-centered arts programs.
As a pianist, Klaus has performed in the United States, Canada, and Europe in solo, chamber, operatic, new-music, and large-ensemble settings. His work includes appearances with the St. Louis Symphony Orchestra, concerto performances in the United States and Italy, performances at Seiji Ozawa Hall, and projects connected with Opera Theatre of Saint Louis, Manhattan School of Music, Boston University Tanglewood Institute, the New England Conservatory, and regional opera and chamber-music organizations.
As an educator and director, Klaus believes that high musical standards and an encouraging rehearsal environment should go hand in hand. He has taught students from elementary school through the university level while directing productions, developing camps and workshops, and building partnerships with professional musicians, universities, and arts organizations that expand opportunities for young artists.
“I believe that no matter who you are or where you came from, you deserve the same level of education and opportunity as anyone else in any big city.”
Klaus holds a Professional Studies Certificate in Opera and Vocal Collaborative Piano from Manhattan School of Music, a Master of Music in Piano Performance from Boston Conservatory, and a Bachelor of Music in Piano Performance from the University of Missouri–Columbia.
Performance
Klaus’s performance work spans vocal and instrumental collaboration, solo repertoire, opera, chamber music, musical theater, and contemporary music.
Teaching & Directing
Klaus has taught and coached across elementary, secondary, collegiate, conservatory, and summer-program settings. His work combines musical rigor with practical program building.
General music, musicianship, listening, singing, movement, instruments, notation, creativity, and ensemble skills across grades 1–12.
Auditions, casting, rehearsal planning, music preparation, performance coaching, student productions, showcases, and music-theater camps.
New performance opportunities, workshops, partnerships, fundraising, recruitment, community engagement, and community arts initiatives.
Selected Work
Appearances with the St. Louis Symphony Orchestra; concerto and chamber performances in the United States and Europe; work at Seiji Ozawa Hall and with opera, festival, and new-music organizations.
Professional and educational work connected with Opera Theatre of Saint Louis, Manhattan School of Music, Boston Conservatory, Boston University Tanglewood Institute, Winter Opera St. Louis, and university studios.
Students have participated in Interlochen Arts Academy, Brevard Music Festival, and BUTI, and earned state, competition, recording-industry, and scholarship recognition.
Recognition from the St. Louis High School Musical Theatre Awards, successful student productions and camps, regional media coverage, and more than $50,000 raised through arts programming and related initiatives.
Selected Moments
A small visual record of collaborative performance, student opportunities, community engagement, and arts leadership.
Media
Verified television, documentary, and archival performance links. Additional recordings will be added only after their source links are confirmed.
Watch television feature ↗Television feature on Brett Klaus and Marquette Catholic High School’s production of Peter Pan.
Student documentary by Ekindra Rasaili about the creation of Marquette’s streamed 2020 Christmas production.
Watch archival performance ↗Archival solo-piano performance.
Watch archival performance ↗Archival solo-piano performance.
Watch archival performance ↗Archival performance from Makrokosmos, Volume I.
In the Press
Regional coverage of guest artists, student productions, major performance opportunities, fundraising, and community engagement.
Coverage of the soprano’s Marquette residency, with Klaus accompanying and leading the event. The article includes his statement that students deserve the same opportunities available in major cities.
Coverage of the streamed Christmas production created when conventional live performance was not possible.
Production coverage documenting the continued expansion of Marquette’s musical-theater program.
Preview and production coverage of the ensemble comedy.
Coverage of the student production and the theater program’s growing range of work.
Feature on the spring musical, its cast, and the production process.
Feature on the ambitious production, including its flying effects, design, and community collaboration.
Coverage of the Marquette choir’s selection to open for Foreigner at Hollywood Casino Amphitheatre during the band’s farewell tour.
Feature on the immersive fall production and the expanding theater opportunities available to students.
Coverage of a holiday dinner fundraiser supporting student theater, emceed by the Grinch, and the program’s broader fundraising work.
Repeated coverage of Marquette choirs participating in the Alton-area observance, including performances in 2018, 2022, 2023, and 2024.
Coverage of the large student production, the involvement of younger performers, and collaboration with professional musicians.
Booking
Vocal and instrumental recitals, auditions, competitions, rehearsals, recordings, and performance projects.
Art song, opera, musical theater, recital preparation, audition repertoire, and competition coaching.
Musical theater, opera rehearsal, school productions, theater camps, keyboard work, and production support.
Workshops, student coaching, masterclass-style sessions, adjudication, curriculum consultation, and school arts projects.
Contact
For collaborative piano, vocal coaching, music direction, educational workshops, or other professional engagements, use the form.