Except for music transferring, PrimoMusic also offers the feature of rebuilding iTunes on its playlists, music ratings and play counts. With the ability of recognizing media contents automatically on your iPhone and computer, it enables to filter out all duplicate contents and grab only unique information, such as podcasts, movies, and TV shows etc. on your iOS devices (iPhone/iPod/iPad), then you can rebuild them to iTunes via Smart Transfer or Manual Transfer.
Install PrimoMusic on your computer > Open it and you'll see its welcome interface:
Run PrimoMusic > Click "Add to iTunes".
Select "Manual Transfer" > Select media content you want to transfer.
if you only want to transfer Playlists on your iPhone to iTunes, the guide about how to put music from iPhone to iTunes will give you a specific solution.
Select "Smart Transfer".
After selecting the options to transfer, choose output folder and click "Export" button to add music to iTunes.
After completing this process, check the media contents you've transferred on your folder.