What is it like to taste sound? Inside the mind of a synaesthete.

Imagine that you are relaxing in your living room when you hear your dog bark. Before you know it, your mouth is filled with the taste and texture of runny custard. Later on, you are talking to a friend and they say the word “like”, which creates the flavour of thick creamy yoghurt. When you think the word “Martin”, you taste a warm almond tart and listening to piano music…