Help me transcribe a very new piano piece

[tsprimarch]

I'm a beginner-ish piano player, and a girl challenged me to learn this piece in a week. I know that's probably unrealistic, but I want to give it an honest shot.

This is the piece:

The problem is that it's very new, so I can't find sheet music, tutorials, or even people discussing the notes yet.

If anyone can help with any of the following, I'd be hugely grateful:

key
chords
melody notes
even a rough transcription or just the opening phrase

If needed, I can also try to learn only part of it rather than the full piece.

Thanks in advance — seriously, any help helps.

[liszt-and-the-galops]

Unfortunately I doubt that that's legal, especially if the composer charges for her sheet music (which would seem to be the case based on a quick search).

[ted]

Seems pretty simple, AnthemScore combined with Musescore or similar should do the trick near enough for you to learn it.