Two simple notes can raise the hairs on the back of a million necks... the theme from Jaws is a masterclass in creating ...

Each of these symbols is a musical note that sounds for a different length of time. Naomi: So does that mean if we mix them up, we could create a rhythm? Mrs Thomas: Oh, yes, it does, indeed.

The note in question is a B flat. This is not a B flat that any human can hear. If you had a piano that could play it, you would have to go 57 octaves below middle C to ring this hypothetical key.

Learn everything you need to know about music notation, including what Western notation is in this KS2 music guide from BBC Bitesize.

E and F – have become synonymous with tension, fear and sharks, representing the primal dread of being stalked by a predator.