I was trying to find Hugo Maldoro - I know a little Cuban, (I think it's a Bonobo mix). I found it at last.fm (https://www.last.fm/music/Hugo+Maldoro) which redirects me to Spotify where I can play it. But within the Spotify interface, the song is unsearchable. Both the song and the artist actually.
This is the song link for spotify (spotify:track:0grBovHMiOKJx6qH8WYeHl),
I assume it's not a bug, so it must be a feature?