Change Files preferences in Music on Mac
In the Music app on your Mac, use the Files pane in Music preferences to set and organize your Music Media folder.
To change these preferences, choose Music > Preferences, then click Files.
Music Media folder location
Select the Music Media folder location, where songs and other files you import into Music are located.
Keep Music Media folder organized
Automatically move imported music into folders for album and artist.
Copy files to Music Media folder when adding to library
Copy an item to the Music Media folder when you drag the item to the Music window.
Change the file format and other settings for songs you import from CDs.