Die Jakobsleiter
Die Jakobsleiter (Jacob's Ladder) is an oratorio by Arnold Schoenberg that marks his transition from a contextual or free atonality toward the twelve-tone technique anticipated in the oratorio's use of hexachords. Though unfinished by Schoenberg, the piece was ultimately completed and prepared for performance by Schoenberg student Winfried Zillig at the request of Gertrude Schoenberg.