With Uber, they started with ride sharing and slowly nudged its way towards being a car-for-hire business. The reason it worked was because no one really liked taxis and didn’t want to defend that monopoly.
Today, cities are trying to regulate places like Airbnb to reduce their presence in major cities, but the only real hate towards Uber and Lyft has more to deal with employee pay.
I feel like you are going to hit a wall regarding streaming rights costs. Also, based on overhead costs and scaling, it will probably encourage fewer music streamers instead of more.