- Commissionable composer – Symphonic, chamber ensembles, solo instruments; film; video game (Associate composer of the Canadian Music Centre, member of the League of Composers)
- Arranger
- Sound designer & audio implementation – Theatre, Video Games
- Ensemble contracting
- Violin teacher (RCM)
Since 2003, Donovan Seidle has served the Calgary Philharmonic Orchestra as one of its three concertmasters, while maintaining a diverse creative practice across Canada’s arts scene. As a commissionable composer, he writes for symphonic, chamber, and solo contexts, as well as film and video game scoring; he is an associate composer of the Canadian Music Centre and a member of the League of Composers. His commissions include works for the Calgary Philharmonic Orchestra, Kensington Sinfonia, I Musici de Montréal, Ensemble Midvest (Denmark), Kitchener-Waterloo Symphony, Kingston Symphony, GlobalFest International Fireworks Festival, and youth orchestras across Canada. His music and arrangements have also been featured in major international productions such as the Emmy Award-winning ceremonies of the Vancouver 2010 Olympic Winter Games, the 2011 Pan-Arabian Games in Qatar, Expo 2020 Dubai, and Symphonic Speedruns—a symphonic reimagining of Lena Raine’s Celeste score. As an arranger, Seidle is equally at home collaborating with pop and folk artists as he is re-envisioning orchestral and chamber textures, always seeking to merge artistry with immersive audience experiences.
In addition to his compositional and arranging work, Seidle is an experienced sound designer and audio implementer for theatre and video games, employing adaptive audio platforms such as Wwise and FMOD to craft dynamic, narrative-driven soundscapes.
He also provides ensemble contracting services, assembling tailored groups of musicians for the concert stage, recording sessions, and multimedia productions.
As a dedicated violin teacher trained in the Royal Conservatory of Music curriculum, Seidle integrates structure, mental focus, and technology—including video, audio analysis, and motion-capture tools—into his teaching practice, helping students cultivate both technical mastery and expressive artistry.
