You may know but just in case...
I tend to look for lossless files. First place I go if it isn’t a major label act is Bandcamp.com. It’s more artist-centric and so artists tend to get a larger piece of the pie. Thing is their labeling isn’t always as informative as I’d like. Sometimes a lossless files turns out to be hi-res (24-bit). You can choose FLAC, ALAC, WAV, AIFF, mp3 for your downloads and you can stream any purchases through their app. Kinda win win when they have what you want.
If not there then I start checking out sites like HDtracks, Acoustic Sounds, 7digital and Qobuz. Some of these stores are geofenced, some have different portals for US, UK, etc. If not, where there’s a will there’s a way. I’ve personally only used the first two of those sites. Prices can get a bit steep but HDTracks has frequent sales and different prices for standard lossless, hi res lossless and lossy iterations.
A cursory search of HDtracks turned up nothing but Qobuz has a few possible entries.
https://www.qobuz.com/us-en/search?q=Metropolis&i=boutique&f[gi]=91#results
Since I’m not familiar enough with the tracks I can’t determine if any search results are what you’re looking for but it may be worth a peek.
When lossy is the last resort option, I skip Amazon at all costs. They use mp3 VBR files. They’re more space efficient and I like the format but I’ve found mixed results there with some pretty terrible audio quality. In an age where storage is less of an issue, that’s a compromise I don’t risk. On the other hand, I find Google Play’s 320 mp3s reliably solid quality. On the very rare occasion a file doesn’t live up to expectations (quality, remaster, mix of song, whatever) it’s been simple to get a refund by going into account history. Bonus: with their free service you can back up something like 25,000 song files to their servers (16-bit files only, no 24-bit). They transcode everything to 320 mp3 but a free cloud back up is never a bad thing).
Of course there’s iTunes for lossy files. Unfortunately, since they debuted MUSIC I’ve been leery. That’s just me. I’ve invested a lot of time managing my music and early on there were reports of weird behavior I just won’t risk.