If you want to use stems and make a remix in a genre different from chill (such as EDM, Techno, House, Dubstep, etc.) - you can freely do that, it just won't be eligible for competition.
​But you can post your remix on your social channels (Soundcloud, Youtube, Audius). Remix must be titled properly: "Anna B May - Into The Woods (Artist remix)". Please use cover art subfolder in remix stems files to make your own cover art for your post.

This emotional melodic future bass track features Nurko’s well known sound and stunning vocals from Chandler Leighton. He really wanted to push boundaries, if you noticed, there is a third drop that’s quite different from his usual music. Since it’s the first single off his upcoming EP, he wanted to kick the story off right with this track. Now Nurko and Proximity want you to push the creative capabilities for your remix.