San Francisco’s Mission District is now under 24/7 musical surveillance SFGATEA hidden microphone on a San Francisco street pole is spotting ‘bops’ in the wild TechCrunch‘Bop Spotter’ Is a Secret Phone Eavesdropping on the Mission’s Music Tastes KQEDConceptual art project secretly Shazams the Mission’s musical taste The San Francisco StandardA hidden device is sharing the Mission District’s musical soundtrack with the world San Francisco Chronicle