Caraoke and Spotify

Caraoke and Spotify

Would someone explain what these two options are and how are they different from the normal music streaming that shows up?

Now that I have paid premium connectivity, I am told these should work.

n7142701886 | 28/03/2020

Caraoke is free, with lyrics, you can listen to voice or mute voice for Karaoke.
Spotify you need an account, no lyrics, no Karaoke function.