In Jonathan Biss’s ongoing cycle of Beethoven’s 32 piano sonatas, the works are grouped according to character and connection, rather than exact chronology. Only now, in Volume 4, has he included the first written, Op 2 No 1, Haydn-esque but with hints of anarchy. Alongside are two other early works: Op 10 No 2 with its crazed, contrapuntal presto finale, and Op 49 No 1, a favourite with intermediate level pianists. The remainder consists of a “middle” period giant: the majestic “Appassionata”, Op 57. Biss’s performance is blazing, nimble, fleet of finger and dangerous. He should complete the project in 2020. We must be patient. For now, hear him play the Appassionata at the Soutbank, London on 31 March.