While in traditional variation sets a fugue was often used to conclude the work, Beethoven uses his fugue to reach a grand climax, then follows it with a final, quiet minuet. The fugue of Variation 32 is set apart by its foreign key, E major. Structurally, the piece abandons Diabelli's two-part original. Melodically, it is based on Diabelli's falling fourth, used in many of the preceding variations, as well as, most strikingly, on the least inspired, least promising part of Diabelli's theme, the note repeated ten times. The bass in the opening bars takes Diabelli's rising figure and presents it in descending sequence. Out of these flimsy materials, Beethoven builds his powerful triple fugue.