I have songs showing and which cannot be played from the Music library in both my Apple iPhone and 2024 Apple MacBook Air running Tahoe (macOS 26.6.2). This has been a problem for many months, and is likely related to the fact that I got a new MacBook and transferred items to it from the old one (which I no longer have).
I cannot press the "download" button because those items did not come from Apple Music Store. They came from a CD or other method of downloading to my old device.
Is there a way to get them from an older (online) backup of my past machine? As I said, I do not have that machine anymore, so my only apparent option is to hook up a CD Player to the new MacBook and/or use the other service(s) to re-download the items, and I am trying to avoid that.