This is absurd. Why are people who insist on couching everything in economic terms refusing to believe that new music is a commodity that people demand? People don't need cars with new features, and yet the market exists for it. Loads of people throw out their wardrobes every 3 months and buy a whole new set. If that's not demand, what is it? If you can only apply "demand" to basic necessities, and literally no luxury goods, then what is the point of the term? That's not to say the commodification of art is a good thing for artists or listeners, in my estimation, in fact I'd say the artificially induced demand of mainstream music is feeding into the current crisis. Marketers push a homogenized sound and then the force of the industry moves to capture that segment of the market. In fact I'd argue there's unmet demand that exists for quality alternative music that won't be satiated by these models.