Montreal-based One Equall Musick is a collaborative vocal ensemble dedicated to the programming and interpretation of high quality repertoire from the fifteenth-century to the present day. Founded in 2011, the ensemble has presented many concerts in the Montreal area including a series of historical Evensong services at Birks Chapel in collaboration with the McGill Centre for Research on Religion. One Equall Musick was featured in the 2013 Montreal Bach Festival alongside celebrated organist Hans-Ola Ericsson; performed in Lennoxville, QC as part of the 2013 Uplands Musical Society Concert Series; and has appeared in two operas and an oratorio with the Compagnie Baroque Mont-Royal. Upcoming projects include a collaboration with medieval music ensemble Scholastica, directed by Rebecca Bain; a performance of English motets from the Wanley and Lumley manuscripts, including the famous “If You Love Me” by Thomas Tallis; and a portrait of fifteenth-century Spain exploring the music of Arabic, Jewish and Christian cultures.

Artistic Directors

Christopher Hossfeld

International composer and conductor Christopher Hossfeld has an inventive compositional style and creates music for many settings, from concert works to music for liturgy or film. An established conductor, he has led both choral and instrumental ensembles with his precise conducting style and commanding knowledge of music. His music has been performed at the Kennedy Center for the Performing Arts in Washington, D. C., Yale and Harvard Universities, and the Longy School of Music in Cambridge, Massachusetts. He is currently working with Montreal’s young company, Opera da Camera, and the vocal ensemble, One Equall Musick, which he founded in 2011.

Rona Nadler

Originally from Calgary, Rona Nadler enjoys a multi-faceted career in the Montreal music scene. As a harpsichordist, Rona has appeared with Les Voix Baroques, I Musici de Montreal, the McGill Chamber Orchestra, and has performed in the Montreal Baroque Festival, Montreal Bach Festival, Ottawa International Chamber Music Festival, and Arion “Croque Baroque” Series. She is a founding member of Infusion Baroque, winners of the 2014 Early Music America Baroque Performance Competition. In the world of baroque opera, Rona has worked as a vocal coach with Opera McGill and Opera da Camera, and with Compagnie Baroque Mont-Royal as music director of their 2015 and 2016 productions. Since 2014, Rona has been Music Coordinator and Cantorial Soloist at Temple Emanu-El-Beth Sholom. She is also a founding member and Co-Artistic Director of the vocal ensemble One Equall Musick. Rona holds bachelors and masters degrees from McGill University in Harpsichord Performance where she studied with Professor Hank Knox.



One Equall Musick is a collective in which all members contribute to artistic and administrative decisions. Board members and artistic directors are appointed on a yearly basis by the members of the ensemble.

  • Dave Benson
  • Duncan Campbell
  • Christopher Hossfeld
  • Matthew Milner
  • Rona Nadler