Donald Macleod tells the story of Chopin's battle with tuberculosis and its effect on his music. Piano Sonata No 2 in B flat minor, Op 35 (Funeral March) Martha Argerich (piano) Preludes, Op 28 (excerps) Havard Gimse (piano) Scherzo No 4 in E, Op 54 Claudio Arrau (piano) Barcarolle in F sharp, Op 60 Waltz in E flat, Op 18 No 1 Dinu Lipatti (piano).