Roger Allen, Wilhelm Furtwängler: Art and the Politics of the Unpolitical (London: Boydell Press, 2018), p. 3.
941
Callow, p. 177.
942
Richard Wagner and Franz Liszt, Francis Hueffer (trans.), Correspondence of Wagner and Liszt, 1841–1853 Volume 1 (1888; Cambridge: Cambridge University Press, 2010), p. 175.
