Help, I need to restore Music playlists using an old iTunes backup
To free up space on my iPhone I tried deleting a bunch of songs. I don't know what happened but the songs didn't just disappear from my phone, they also vanished from my playlists across all of my devices. The songs are still in my library but my playlists are now mostly empty. I've spent years building my playlists and will now have to re-organize thousands of songs.
I do have a Time Machine backup on an external drive but it is from a previous OS, (High Sierra I think), the one right before iTunes was broken up into separate apps for Music, TV, etc. Is there any way I can restore that old iTunes library into the new Music app and get my playlists restored?
FYI, I do not subscribe to Apple Music, if that matters.
Thanks!!
iMac 27″, macOS 10.15