The documentary shows how the first art became an industrialised product. The record companies just want as many products as possible to sell them. For this, they will do whatever they need; sexualising music, reducing it to only rhythm, etc. The first art, as it was understood and used for many centuries, suffered a radical change in the last century, and we don't realise it. This documentary is key to understanding what Music should be and what the impacts are on our life and society. Apart from that, it's also a class about the concepts of Music, it made me understand several things about Music theory.