Spotify has apparently found a new way to push its free users to a paid subscription: It’s putting lyrics behind a paywall. Following various reports citing frustrated posts from users on Reddit, the company is quietly confirming the change — but without a direct statement. Instead, the company told TechCrunch simply that Spotify’s features can vary over time, between markets and across devices. The response indicates the change to lyrics may be more than just a test but that Spotify isn’t yet p...