Chopin Studies Op 10, Nos 3 to 8 played by Malcolm Binns 

Malcolm Binns plays the Broadwood grand piano which Chopin used for his 1848 London recitals. The tuning is approximately a semitone below 440Hz. From broadcast in 1979.
Study no 3 in E 0'
Study no 4 in C# min 5' 33
Study no 5 in Gb 7' 42
Study no 6 in Eb min 9' 22
Study no 7 in C 12' 30
Study no 8 in F 14' 12