Clues in the title, any body know roughly what grade this piece is, or the difficulty of it, because i know its not really classical and you wouldn see it in an exam book.

The piece looks hard to play, and sounds hard to play, but it feels relatively easy, and no ones really put a grade or said how difficult (or easy) this piece is unlike Primavera or Igorni. Which in my opinion dont sound as nice.

Any info would be much apreciated, for both me and other people wishing to know as ive looked everywhere but cant seem to find any information.