The Cello Sonata Op. 6 was composed over an apparently frequently interrupted period of three years, an extraordinarily long time for Strauss’s early creative phase. The compositional process spawned two independent versions of the work, the first of which is published for the first time on the basis of the text in the Critical Edition of the Works of Richard Strauss in the current edition as a practical musical text. The genesis of the two versions and the reasons for revision can only be recon...