Via JWZ, we learn of Riley Walz’ project that coopts the rather depressingly insidious programme called Shotspotter (™️ presumably and run by subcontractor touting benefits for public safety and security but failing to deliver) that detects and ranges gunfire by arrays of microphones installed in cities across America—though some police forces have cancelled their subscriptions due to cost and the diminishing returns on investment of random bullets—with a hidden phone attuned to picking up songs from street level perched somewhere high above San Francisco’s Mission District. Shazam is an application that can identify music from a short clip and adds the song to the playlist. When first launched in 2002 in the UK, people would text “2580” on their mobile phones and hold it up to the radio or television to get a piece recognised, getting a text back with the title and artist.