(1) connected google pixel phone to PC (running windows 7).
(2) switched phone to USB type: File Transfer
(3) Opened phone on PC
(4) navigated to music directory, added 2 albums. These have a simple <album name> sub directory populated by .mp3 files
(5) open Google Play Music on Google Pixel
(6) 1 album is displayed, the other is absent.
What is going on with this backwards device? How is this supposed to work?