Lunchtime Piano

The Sri Lankan pianist Tanya Ekanayaka plays Beethoven's Piano Sonata No 14 in C sharp minor, Op 27 No 2 ('Moonlight'); Rachmaninov's Prelude in C sharp minor, Op 3 No 2; Tchaikovsky's 'Les saisons', Op 37 (excerpts); and Khachaturian's Toccata.