Thisis probably the summit of the art of variations of Brahms, and even a summit in the art of variations for clavier, with the Goldberg (harpsichord, Bach)), the canonic variations (orgel, Bach), the Diabell (Beethoven), The Etudes symphoniques (Schumann). Richter choses a rather fast tempo, which is well adapted to these variations & fugue. A referencce version.
