Les mathématiques de la musique (avec Vled Tapas)

Why do we have to tune instruments? Why are there 12 musical notes? The answer lies in mathematics! Le Set Barré (Vled Tapas' channel):    / lesetbarre   To support me on Tipeee: http://www.tipeee.com/science-etonnante My book: http://www.science-etonnante.com/redi... Facebook:   / sciencetonnante   Twitter:   / dlouapre   Subscribe:    / scienceetonnante