His exceptionally wide repertoire contained Czech and Canadian music, including contemporary pieces; but also romantic works by Chopin, Schumann, and especially Brahms, for which he is considered to be one of the foremost performers of recent times.
He chaired the Fred Gaviller Memorial Foundation, a Toronto organization whose mission was to sponsor debut recitals of young artists.
Kubálek also served as chair of the Advisory Committee of the Kapralova Society in Toronto and participated in the first Canadian documentary on Vítězslava Kaprálová for the CBC Radio 2 in 2001.
In 2003 he established an annual festival in Zlaté Hory in the Czech Republic, The International Kubalek Piano Courses, for young pianists.
Gould's only foray into the role of producer was inspired by Kubálek's playing: the Second Piano Sonata by Erich Wolfgang Korngold was the fruit of this singular musical union.