Gould left an extensive body of work beyond the keyboard. After his retirement from concert performance, he was increasingly interested in other media, including audio and film documentary and writing, through which he mused on aesthetics, composition, music history, and the effect of the electronic age on the consumption of media. (Gould grew up in Toronto at the same time that Canadian theorists Marshall McLuhan, Northrop Frye, and Harold Innis were making their mark on communications studies.) Anthologies of Gould's writing and letters have been published, and Library and Archives Canada holds a significant portion of his papers.