Added 23 minutes ago
We listen, and choose the three tracks we like best. We don't evaluate the video (if there is one).
Here is what will happen next, basically. I'm too lazy to explain the gist, but if someone doesn't understand or has forgotten from last year, then fine, I'll explain it.
Added 5 minutes ago
Oh yes, if you want, you can try to guess the names of the senders, although everything is quite obvious here, in my opinion.