You wouldn't have to transfer to a new account, you'd just have to create the account and link it, then remove the Facebook connection.[1]
[1] https://community.spotify.com/t5/Spotify-Answers/I-want-to-d...
[1] https://community.spotify.com/t5/Spotify-Answers/I-want-to-d...
I'm too lazy to like transfer all my playlists and liked songs to a new account.