U can do itune sync by wifi or plug ur iPhone into the computer then open iTunes. You will find on left hand side the name of ur iPhone or iPhone if u didn't name u click the name and there are general settings like do u want to sync only checked songs. Then u can go into music in those settings to pick what playlists etc. you can also pick groups there. I feel if you want little of everything then do the setting for sync what's checked because if u choose groups or albums it will be all songs. I don't want to hear everything all the time.