Several readers sent word that Android Police has leaked details about YouTube's upcoming subscription service, Music Key. The benefits for users will include ad-free music, offline playback, and audio-only streams. It's expected to cost $10 per month. "Of course, one of Music Key's major value propositions is that users will have access not just to official discographies, but to concert footage, covers, and remixes. Play Music already houses some remixes and covers, but YouTube as a platform is significantly more open and workable for derivative content — the platform is much easier to add content to, and user discoverability is substantially different from Play Music." Others note Google still has to negotiate terms with many independent musicians, who could subsequently see their work blocked if they aren't willing to play by Google's rules.