If you have Windows Media Player or iTunes selected as your music location, you can upload specific playlists from your library.
- Select the Music Manager icon . You’ll find this at the bottom right of your screen (Windows) or the menu bar in the upper right corner (Mac).
- Select Preferences > Upload > Choose by playlist.
- Check the box next to the playlist you want to upload.
- Select Upload.
Note: Keep in mind deleting your playlist in iTunes will also remove the playlist from Google Play.