How can you tell the difference between a good sound and a bad sound? There’s not much that’s more annoying than to be forced to listen to a bad sound – but what do we mean when we call something a bad sound, and is that bad sound heard and understood in the same way by different people? In this final episode of our podcast series, host Tim Hinman argues that it’s all relative –good sound and bad sound. But relative to exactly what? That’s the hard part. Featuring Mark Grimshaw, Professor of Music at Aalborg University and Andreas Hudelmayer, a luthier working out of Clerkenwell, London.