With its intervallic jumps, bizarre rhythms and dense polyphonies, Beethoven's Grosse Fuge, or "massive fugue," is one of his most radical works.
The Gewandhaus Quartet has existed, in various formations, for two centuries
It was originally intended to serve as the last movement of his Op. 130 quartet, but Beethoven later opted for a much shorter finale, leaving the Grosse Fuge to stand alone.
The Gewandhaus Quartet from Leipzig -- the world's oldest continuous string quartet -- performed the work in the chamber music hall next to Beethoven's birth house as part of the 2008 Beethovenfest in Bonn.