Apple’s proposed $400m acquisition of song recognition app Shazam is being investigated by the European Commission’s antitrust watchdog. The fear is that Apple will use Shazam to access commercially sensitive information about users of services like Spotify, rivals to its own Apple Music streaming offering. That could give it an unfair advantage over rival services like Spotify. Apple might point to the clearance for Facebook to acquire both Instagram and WhatsApp, though – while Facebook has been more than careless with data juggling – those takeovers were to drive ad revenues, not intentionally to stifle social media competition. Apple, on the other hand, may be intent on smothering Spotify, in the eyes of any antitrust watchdog. Despite the differences between…