1 sheet of any colour or size of square paper, ( I used some origami paper, not sure about measurements)
Step 1: Step 1
Then fold in half, top edge to bottom edge.
Step 3: Step 3
Open up the ''pockets''
Fold them so they lay down flat
Step 4: Step 4
Fold the sides over it
Let go and the sides should unfold a little to make it look like a piano and stand it up