Sorry google, you missed the bus on the music thing.
Except the reverse is true. Music subscriptions are not on most peoples radar. Google hold a dominant position in the largest OS in the world on the most popular music devices in the world, and ownes the largest (Music) Video Site (in fact that is the whole point about the indie artist dispute) on the most used music player in the world. It is a market of few large players, and a large player like Google is eg. Microsoft with Xbox.
The only real question is how do they do it without bringing into question antitrust concerns.