Welsh pianist Llŷr Williams joins us to preview his 12-CD box set Beethoven Unbound. Recorded live during his three-year Beethoven cycle of concerts at London's Wigmore Hall, the collection contains remarkable performances of the complete piano sonatas and other works – including the 32 Variations in C minor, Eroica Variations, Opus 126 Bagatelles and the Diabelli Variations (a total of almost 14 hours of music).