THE Three Choirs Plus science show was in the Old Market and other venues, demonstrating how a musical instrument works, and what it is that our ears and brains are doing when we listen to one.

Demonstrators were on hand to help visitors enjoy hands-on activities like the ear-switching hat, oven-shelf sounds, guitar-string physics and more.

There was also the opportunity for people to make their own music on a selection of everyday objects, have a conversation on a space phone and take a look at exactly what's inside the human ear.

Today, Tuesday, they'll be in High Town. Call the box office on 0845 652 1823 for details of where to find Chaos throughout the week.