How do I download spotify (any other music discovery service) playlists from soulseek in lossless

How do I use exportify or any other option to download favorites / playlists etc (in lossless format) from any music services. I’m using soulseek but I’ll check any other option if available. [EDIT]: I’m not trying to download from Spotify, looking for interfacing workflow between Spotify and Soulseek.