Music is made to be listened to, so you immediately have an issue where you're playing it in the background like wallpaper. Music doesn't want to behave like that.

By starting to pay attention to our natural soundscapes, businesses can reduce staff turnover, increase productivity, and increase profits.

Sadly, piped music in so many public spaces is often just more noise. Rarely is it carefully designed to enhance our experience; much more likely it is there because retailers have subscribed to an incorrect view that music makes people spend more.

There's a little bit of protocol in the real world which is quite important. If you speak to me, we understand that we've entered into a social contract. But sound that you haven't given permission to receive is noise, and generally unwelcome.

We all like to look good. However, this basic human desire can often get in the way of our listening and our speaking. This tendency often evinces itself in two simple words: 'I know.' But if I know everything, what can I learn? Absolutely nothing.