The new critical and practical edition of Sinfonietta reflects all existing sources, including those recently discovered during the work on the edition. It is primarily based on the transcription of the score that was used to stage the premiere and then served as a print template. The transcription was subjected to the first press release, and contained the premiere manuscript orchestral voices, autograph and corrections. In principle, Sinfonietta is restored to the premiere version of 1926, whe...