Task: Explanation
Input (English): Happy End is a three-act musical comedy by Kurt Weill, Elisabeth Hauptmann, and Bertolt Brecht which first opened in Berlin at the Theater am Schiffbauerdamm on September 2, 1929. It closed after seven performances. In 1977 it premiered on Broadway, where it ran for 75 performances. Question: What German composer wrote Happy End?  Answer: Kurt Weill
Output (English): Happy End is a threeact musical comedy by Kurt Weill, Elisabeth Hauptmann, and Bertolt Brecht which first opened in Berlin at the Theater am Schiffbauerdamm on September 2, 1929.