Music and maths

[Meloncita]

My 4yo DS has a natural interest in both maths and music (he was 'labelled' g&t in maths at nursery and he is around grade 1 standard in piano). I have heard people mention a link between the two, and out of curiosity's sake, just wondered what's people's opinions or experiences of this are?

Back in the Dark Ages when I did A level physics, it was a group of 12 girls. Whenever there was extra rehearsals for concerts the group would be down to 1 (even the teacher sang in the choir). Most of us did maths too, very few did languages.