For college we have to write a 3000 word essay on a subject so an idea I had was to firstly explain the maths/physics behind music and then break up a piece of classical music into its sine waves. However, my acoustics knowledge is limited. Does anyone know of a good book/books that explain the physics and maths behind sound/music. Notes, scales, different instruments, chords, tempo etc. I do not yet know Fourier transforms, I understand this is probably useful so a book on that as well might be needed. Thank you in advance.