MacBook not authorized to play my music
I have a MacBook Pro running OS 12.1. I also have thousands of songs in my iTunes music library, some are albums I downloaded from personal CDs years ago, others are albums and songs I purchased from iTunes. At some point, perhaps when I bought this MacBook 2 years ago, parts of my library lost their authorization to play. So today I tried to play some songs I had purchased several years ago and I got the message that they aren’t authorized to play on my computer. I reauthorized, and they still won't play. I've seen other people have this problem and the advice is to delete and redownload, but I have a large library and it would take me a month to figure out which songs/albums in my library need to be deleted and re-downloaded, plus some of this content is stuff I imported from CDs I owned. Is there a way to just across the board reauthorize my entire library?
MacBook Pro 13″, macOS 10.12