Luthier de Proporções

Synopsis: Joe wants to build his own vibraphone bottles, but do not know much about musical instruments and therefore enlists the help of his friend Márcio, who is a musician. While this helps in building, Joe discovers that music and mathematics are closely related, the latter can describe the first.
Source: Unicamp - M3, Mathematics Multimedia.
URL: http://m3.ime.unicamp.br/recursos/1129