Downloaded the Amazon Music app for PC. This was deftly hidden, Amazon's own site links only a web player and if you click "Download App" it gives you a QR code. For your phone I guess. I had to go to the Windows Store.
Although Amazon's help pages claim the PC app can download purchases, I still show no purchased music. I think this is because every time I log in on the US store the app redirects me to Canada. Yes, I am in Canada right now. But I was in the US in 2007. When I bought the music?
...
Wait, is iTunes still doing that U2 thing? That was a thing when the damned service first launched, it was a matter of some significant derision, what was that, 17 years ago?
You could grab an old copy of WinAmp. Entirely Bono-free, and I hear it still whips the llama's ass. (WACUP would be suggested, but there's presently no ripping plugin for it.)