Music swells with passion, moves the emotion. Maths is cool, clinical, methodical. One is fire, the other is ice. But did you know that Maths and Music are close cousins ? Yes, Music relies on many Maths ideas.Beethoven's famous 5th symphony features the infamous Fibonacci sequence. Mozart's music uses the Golden Ratio. Fractions are what makes Chinese music work. We show you how Maths makes sure you will never run out of musical compositions, how Maths can help you create hit songs and how music and Maths are so closely related that music can help you be better at Maths.