One of my favourite applications. I stopped paying for spotify and just use this to get music these days. Everything gets uploaded to youtube anyways.
Downloading music from YouTube will get you MP3s, but they will have gone through the YT compression algorithms.
Use Deemix instead. Downloads MP3s straight from the Deezer servers with all metadata and album art.
Lucida.to would also be a pretty good choice, you can choose to download from either Deezer, Qobuz, Tidal, Spotify, Deezer or Amazon Music.
Does it automatically grab things like metadata (author, cover art, etc.) for you? And if it requires a flag, do you know it?
Unless the artist only posts on YouTube, try soulseek. Most files have metadata already included, and if they don’t, you can just download from another user.
May I suggest SpotDL specifically for Spotify: https://github.com/spotDL/spotify-downloader
Does it work anymore? I’ve been getting the 500 error while trying to use it for a couple of months non stop.