Everyone is aware of the fact that visual and auditive perspective are identical; the only difference being that they are created and perceived by two physically different organs, the eye and the ear. How often the playing of a great master makes us think of a picture with a deep background and varying planes; the figures in the foreground almost leap out of the frame whereas in the background the mountains and clouds are lost in a blue haze.

The art of piano playing (ed. Longwood Pr Ltd, 1973) - ISBN: 9780893415563