Playlists (batch deleting, music.app)

You cannot batch select (holding the shift or option key) to delete playlists from the side bar. You have to delete them one by one. Try this AppleScript instead:

tell application "Music"

set playlistList to (get playlists)

repeat with p in playlistList

try

if (name of p) is not "Library" then

delete p

end if

end try

end repeat

end tell

Make sure you're backed up! But it worked like a charm for me.