Moving .m4p from one Mac to another (both mine)

[BeatCrazy]

So I pre-ordered the deluxe ...And Justice for All Metallica release from Amazon, and at the time of purchase, Amazon indicated I could get a digital copy via iTunes. Which is fine/cool. But the files automatically downloaded onto my iMac Pro, where I don't have my main iTunes library.

I need to get these files on my Mac mini. I've tried importing the .m4p files a variety of ways, but it won't work. What is the best way to get them from one Mac to another? Seems like I shouldn't have to strip DRM, since both computers are authorized for my iTunes.

 

[BeatCrazy]

Update - looks like the album is really part of Apple Music, so I don't really 'own' it. Rather, it's available for me to download as part of my Apple Music subscription, and that's it. If I enable iCloud Music Library, I can get it on any device/machine.