I did tell him to just connect his phone to his laptop, yesterday and look for the music folder
Well this is correct & normally what anyone would do. However one minor thing to add is that once he's connected his phone via usb, he should make sure the phone is visible in laptop file explorer which is achieved by unlocking the phone (swipe screen/use finger print/whatever). Might be the case then that he needs to look in device AND sd card if one is fitted and then look for the Music folder. Only fly in the ointment might be the google play app, I don't know if this would store music under a different file location.