I like the idea of having Shazam technology built right into iOS. What I don’t like is the idea of having to invoke Siri to ask “what song is playing”. In many environment where we hear a song and want to know what is playing, Siri couldn’t even understand what we are asking because of a loud environment (a bar for example). I can see a much easier way to invoke Shazam: from within the Control Center by touching a mic button on directly on the lock screen, just like the camera button. Finally, just like John Gruber asked: why not buy Shazam altogether?