Apple Inc. is reportedly close to buying Shazam, the maker of the app that identifies sound and video content in seconds. TechCrunch cited unidentified sources who say the Cupertino tech giant (NASDAQ:AAPL) will pay about $400 million for the London-based company, which also has offices in Redwood City and Southern California. That price would be far below the $1.02 billion that PitchBook Data said Shazam was figured to be worth when it last raised private funding in 2015. Shazam raised about…