Why does Western music divide the octave into 12 different notes? Why not 13, or 19 or 24 notes? For such a simple sounding question, the answer is actually a tangle of history, physics and human preference. Get ready for some serious music theory!

Thank you to Modartt for gifting me a copy of their amazing Pianoteq software. Find out more here: https://www.modartt.com/pianoteq