Busoni/Ley 1957
availability: Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) (http://creativecommons.org/licenses/by-nc-sa/4.0/)

Ferruccio Busoni, Rosamond Ley, The Essence and Oneness of Music and Other Papers, 930436405, London, Rockliff