Jason Lee Wiens, a CanLit scholar, has been involved in the SpokenWeb Pedagogy Task Force, developing approaches to teaching with sound recordings, over the past year. Wiens’ engagement in the use of sound recordings in the teaching of Canadian poetry has led him to think about the relationship between sound recordings of author’s reading their works (sometimes in advance of their publication) and the published versions of those same poems.  The following discussion explores and extends some of the thinking developed for Wiens' paper “Sounding Difference: Genetic Criticism and Literary Audio Recordings,” delivered at at the “Genesis – Genetic Criticism: from Theory to Practice” conference held at the Jagiellonian University (Kracow), and co-sponsored by the Institute des Textes et Manuscrits Modernes (Paris), 12-14 June 2019.