One answer to this madness is to starve the beast: never buy any music or any content from an established company. Torrent everything. It may not work at all, but at least you can tell yourself you're not helping the bastards.
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I listen to a lot of traditional Irish music and love to do things like shuffling a playlist of all the same tune by different performers.
To do that on Spotify I need to search the tune name, then create a new playlist and manually add them all.
With my local files I can just grep, even the metadata, and pipe it into a playlist for mpv to play instantly.