The Cunning Little Vixen as "Jenůfa" and "Káťa Kabanová". In "The Cunning Little Vixen", the composer moved away from the more conversational style of previous and subsequent operas in favor of a more folk-like style, and wove into its fabric some of his most experimental opera concepts (ballet, mime, and orchestral interludes). Janáček based "The Cunning Little Vixen"s tonality on modes (similarly to much output during his last decade), expanding the music's harmonic range through the utilisation of the seventh and ninth chords. The composition makes frequent use of folk-influenced rhythms and "sčasovka" (personally-coined term for a short motif), while it has been noted
Wozzeck on the compositional direction of "Wozzeck". In a letter to his wife written in June 1918, he wrote, "There is a little bit of me in his character, since I have been spending these war years just as dependent on people I hate, have been in chains, sick, captive, resigned, in fact, humiliated." His correspondence and notebooks dating from the war years reveal a painful obsession with completing "Wozzeck". Compositional sketches and notes for both Wozzeck and the "" of Three Pieces for Orchestra that Berg made during the war are strewn with disjointed fragments of military ordinances and terminology.