Karla Hartl is founder and chair of the Kapralova Society, a Canadian music society based in Toronto, Canada, dedicated to promoting Czech composer Vitezslava Kapralova and other women in music. Hartl's research on Kapralova has been published in the Kapralova Society Journal which she co-edits with Eugene Gates, a retired faculty member of the Royal Conservatory of Music in Toronto. Her articles have also appeared in Tempo (Cambridge University Press), Journal of the IAWM (International Alliance for Women in Music), VivaVoce (Frau und Musik), Czech Music Quarterly (Czech Music Fund), Journal of Czech and Slovak Music (The Dvorak Society of Great Britain), Martinu Revue (Bohuslav Martinu International Circle), Opus musicum, Harmonie, Tydenik Rozhlas (Czech Radio), and FOKus (Prague Symphony Orchestra). Hartl is co-editor of the first monograph on Kapralova in English, The Kapralova Companion, published by Lexington Books (Rowman & Littlefield) in the United States in 2011 and shortlisted for the F.X. Salda Foundation Award. She also wrote a text on women in Czech music for the anthology Komponistinnen und ihr Werk published by Kassel University Press in 2010, and contributed an essay to an anthology of essays on Kapralova published in 2017 by Chronos Verlag (Zurich). In 2015, she collaborated on a five-hour radio document on Kapralova produced by BBC Radio 3 for the composer's centenary. Hartl's latest project is a multi-volume anthology of Kapralova's correspondence (publisher The Kapralova Society).