Marie-Hélène Breault, as a flutist, specializes in 20th- and 21st-century music.

As a soloist and chamber musician, she distinguished herself by her performances of Karlheinz Stockhausen’s works for flute and in premiering several works by Canadian composers.

She recently co-authored musical and multidisciplinary pieces with composers Katia Makdissi-Warren and Martin Bédard, and with choreographer Annie Gagnon, as well as with poet and singer Michèle Motard, composer and vocalist Gabriel Dharmoo, and pianist Pamela Reimer. She also touches on classical repertoire and improvisation in various projects, notably with pianist Pamela Reimer, with whom she has a duo.

She performs regularly with Ensemble contemporain de Montréal (ECM+) and with Société de musique contemporaine du Québec (SMCQ). Over the years she played with Erreur de type 27 (E27), Sixtrum, OktoÉcho, Codes d’accès, Innovations en concert and Jeunesses musicales du Canada.