Music in iTunes
When I got my first iPhone (4S), I spent hours copying my CD's to iTunes. All music then went onto the phone. However, when I switched to a iPhone 6, I didn't get all my music. And the same for my iPhone 8. So I am in the process of copying everything into iTunes again, and using my Mac Airbook. I want to get rid of my physical CD's after this process. How do I make sure the music stays with me - even after the physical copies will be gone?
MacBook Air 13", macOS 10.14