Trying to buy and own music in 2022 (for mixtapes) is a pain in the ass anymore. Curse you streaming!
I lamented the effort required to a friend tonight...
I mean, you can't rely on streaming anyway. Licenses come and go and I have mixtapes that aren't even a year old that feature tracks that already have expired licenses on streaming platforms.
Thank god I bought everything for offline playback at the time!
Oops, forgot to mention the iTunes store.
That's my last resort when I can't find things in proper 44khz 16-bit (CD) (or higher) uncompressed sources. I avoid AAC/MP3 as much as possible, preferring FLAC/AIFF/WAV instead.