sinking record label discography to iPod touch on Mac os10 catalina?

Hi everyone hope you're all doing well and staying safe. I have a record label discography that I would like to sync to my iPod touch buy record label I know that Apple Music doesn't really support this as such is there a way to add the record label discography folder in the Finder directly to a playlist? Or is there any way I can use a smart playlist to add the record label discography to my iPod touch?
Also can I sync the record label discography folder directly from my Finder in a play list format or do I have to use Apple Music to do this? Your help with this situation would be most welcome everyone thanks again for your help :-)