Second one from Chicago just as good as the first. Pick it up on the BBC listen-again feature.

Called The Neglected Sense about the ear and sound. Thoughtful and thought-provoking. How about this:

"we have invented a method of hearing music without listening to it"

Musak, I-pods, ear-phones. And the effects are not confined to music - is his point. The man has wisdom - and that's in short supply.

Z