When music is playing nearby, it will automatically show up on your lock screen. With just a tap, save the song to a playlist or open it in your favourite apps. This works in real time; knowledge about thousands of songs has been built into your phone. This means no audio is ever stored on your phone or sent to Google to identify music, and it can even work offline.

From version Pixel Ambient Services 1.0.318269246 beta (READ NOTES):

• Dark mode support
• New icons
• Bug fixes and performance improvements

All versions