Soulseek and torrents. Soulseek is p2p file sharing. You'd need to go procure the mp3s for the songs in your Spotify.

Alternatively there's https://5jsjq2jytkqh7mc1l5ylux3bsmzhkxpbq82ocsv8v74sir3b6wgruuv.nsite.lol/

Which is just a random collection of pirated tracks from like 5 guys, but it's Nostr native.