Mark Sheldon Conducting Internship
History and Program description

In 2003, after a long battle with cancer, beloved KVOD radio host, St. Martin’s singer and assistant conductor and all-around music educator Mark Sheldon passed away. A legacy was established in his memory to be used in part for educational outreach. The Mark Sheldon Conducting Internship was established to fulfill this part of his legacy.
The conducting internship is one of the few, perhaps the only one of its kind in the US. It provides this unique opportunity for college conducting students to conduct a professional choir on an ongoing basis during a concert season. Potential interns go through an application process and the intern is selected by St. Martin’s Artistic Director, Tim Krueger. The intern is expected to attend all rehearsals, assist in rehearsals and conduct when Mr. Krueger is unavailable. Perhaps most unusually, the intern is also assigned at least one piece to conduct in nearly every concert. The intern is warmly welcomed into the St. Martin’s family and builds a rapport with singers and staff, is encouraged to attend St. Martin’s board meetings and serves on the Education and Outreach committee of the board. With all these duties also comes an internship stipend. The expectations are rigorous, but the rewards are immeasurable (see quotes below.)
2024-25 Mark Sheldon Conducting Intern

Nora Cullinan is a third-year dual master’s candidate at the University of Denver Lamont School of Music studying choral conducting and vocal performance. She graduated summa cum laude from Loyola University New Orleans with a bachelor’s degree in vocal performance and a minor in theatre arts. She grew up singing with her whole family, from a cappella motets to Christmas carols to Broadway musicals. Nora’s first conducting experience was as a drum major with her high school marching band, but choral music has always been her true passion. She has sung with a multitude of ensembles, including Santa Fe’s Coro de Cámara, New Orleans Vocal Arts, the Louisiana Philharmonic chorus, and the Lamont Chorale. She is currently a choral scholar at Saint Gabriel the Archangel Episcopal Church in Cherry Hills Village, and has also served as assistant director and assistant chorusmaster with Lamont Opera Theatre. In addition to her choral endeavors, Nora is also a voice & piano teacher, actor, and amateur baker. She is forever grateful to all the choir directors in her life who inspired her to pursue her passion, and to Timothy Krueger and St. Martin’s for this wonderful opportunity.
Past Conducting Interns
- 2024 – 2025 :: Anthony Wirtz, University of Denver
- 2023 – 2024 :: Sara Garza, University of Denver
- 2022 – 2023 :: Samuel Sherman, University of Denver
- 2021 – 2022 :: Sheila Melendez, University of Denver
- 2020 – 2021 :: Drew Ritchie, University of Denver
- 2019 – 2020 :: Michael Ballard, University of Denver
- 2018 – 2019 :: Blake Nawa’a, University of Denver
- 2017 – 2018 :: Michael Johnson, University of Denver
- 2016 – 2017 :: Ana Spadoni, University of Denver
- 2015 – 2016 :: Matt Stewart, University of Denver
- 2014 – 2015 :: K. James Howe, University of Colorado, Boulder
- 2013 – 2014 :: Brett Kostrzewski, University of Denver
- 2012 – 2013 :: Taylor Martin, University of Denver
- 2011 – 2012 :: Hannah Wunsch, University of Colorado
- 2010 – 2011 :: Adam Kluck, University of Northern Colorado
- 2009 – 2010 :: Brian Stone, University of Colorado
- 2008 – 2009 :: Jill Schroeder, University of Denver
- 2007 – 2008 :: Ace Edewards, University of Denver
- 2006 – 2007 :: Gabrielle Dietrich, University of Colorado
- 2005 – 2006 :: Heather Kohl, University of Denver
Future Opportunities
The Mark Sheldon conducting internship is ongoing. If you are a conducting graduate student in Colorado, please consider applying for this program. If you are a college choral music professor, or if you know of Colorado conducting students who would be interested, please let them know about this internship.
All inquiries and applications should be directed to St. Martin’s Artistic Director, Tim Krueger.


