In fresh research this week Credit Suisse argues that global recorded music industry could soon return to expansion, driven largely by rising adoption of subscription-based streaming services. If subscription based streaming music goes mainstream—it is likely to get a big lift if and when Apple starts promoting/integrating Beats Music, which it bought earlier this year—plenty of people will be spending more on music than they ever have before, for access to more music than they’ve ever had before. And suddenly, the music business will have a new growth engine. But how will the money be carved up?