First get iBackupBot
Open iBackupBot.
Look for "Devices"
Expand the list for your device (iPad/iPhone) so that "User apps", "App file sharing" , and "Raw file system" appear
click on "Raw file systems"
click on "iTunes_Control"
Export music folder to a location of your choice on your mac
Go to the folder location, on the apple search bar type in mp3 so that only mp3 files show up in the folder instead of all the subfolders.
Highlight all mp3 files, using your shift and arrow keys.
Right click or alt click then select "open with =>" iTunes should be default.
Bam! You're done now you should have a copy of whatever mp3 file is on your phone in your mac.
iBackupBot is free, so anyone can do this. Don't go out there and buy a shady tool that may just steal your money. If this helped you please reply thanks.