
Designed to look like an audio waveform, scanning these official barcodes with a smartphone will prompt the device to play a specific song on the app. In the past few years, many music fans have chosen to get these tattooed on their body, often sharing them on social media. But as the trend drags on, some are realizing that the tattoos, even just a year later, quickly begin to stop working.
https://futurism.com/the-byte/spotify-tattoos-stop-scanning