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https://www.navidrome.org/

Granted it requires a server, but is easy to use on any client as a web app.

I'm still uing Winamp, works the best for my use case. Easy to find my music and easy to control the player with global hotkeys so never have to leave the game/editor/wasd-position just to change song :-)

Past few times I've set up a computer, I've been using Clementine. It's decent, does the job pretty well, and you can add web radio streams as well