Thanks.
I dont like to auto synch as I am not always ready to have things synching each time I connect.
I wonder if the duplicates have to do with how I drag things onto my device in MB?
I am using an SD Card so I dont drag right onto my S4. UNderneath it in the tree there is something called "Storage" and under there is something called "Music" and "Playlists" which is where I have been doing it. But each time I drag a playlist, I get duplicates as it loads all the songs on that list, even if they were already on the phone...