Hi @user-removed, welcome to the Spotify Community!
We want all the world’s music on Spotify, but some artists and tracks are currently not available (or are available in one country and not in another).
Reasons for this vary: Agreements with artists or labels may be ongoing or can’t be reached, or ownership of rights can change hands.
Thousands of albums and artists are added to Spotify every day. If you can’t find something you’re looking for now, it may appear (or reappear) soon!
I suggest you get in touch with the artists themselves through their social media channels 🙂