It's been reported even before Apple launched its Music streaming service that the company's facing antitrust probes in the US. Now, Reuters says the FTC has begun looking into Cupertino's "treatment of rival streaming music apps" to make sure it's not violating any antitrust law. See, iTunes also offers those competitor apps for download, and Apple gets a 30 percent cut per subscription paid through the program. That forces the companies to choose between charging extra on top of their $9.99 per month service (making the total $12.99) and accepting the loss to match Apple Music's pricing.

http://www.engadget.com/2015/07/11/apple-music-ftc/