Transfer ripped CD music to a different iTunes account
I have ripped all my CDs to my own iTunes account (stored on my laptop) and also bought music through the iTunes Store App. My son has just got an iPhone (12 mini) with his own iTunes account. Using Family Sharing we have managed to transfer the iTunes bought music across but can't transfer the CD ripped music. My son doesn't have his own laptop or PC. Any ideas - surely I must be able to transfer music from a CD I have bought?
iPhone 12 mini, iOS 16