RE: Share your TUNES and WIN the post earnings! - TRACK OF THE WEEK! (ROUND 9) - (Last weeks winner @krazzytrukker WON 13.695 STEEM)

Wild Dances by Ruslana

I'd like to ask for some clarifications:

The title says "Share your TUNES and WIN the post earnings! - TRACK OF THE WEEK! "

-> TUNES (something not necessarily with words, as far as I undersand)
-> TRACK

while the "HOW TO ENTER" section states
" to a song that you are really enjoying at the moment"

-> song (something with words)

So the question is

1. Should it be
   a) a tune with a person who sing a song
   or
   b) it's enough if it's just a tune/melody without anybody singing?

2. If it's just about songs, then should it be something
   a) in English only
   or
   b) in any language