Look at the closet in the corner to the right of the bed.
Remember the heights of the small glass windows at the top.
Tap in the corner behind the bush to the left of the bed.
Change the heights of the bars: Shortest, tallest, 2nd tallest, 2nd shortest
Pick up the key.
Look at the foot pedals of the piano.
Remember the colors.
Go to the computer monitor and change the colors to match the foot pedals:
White yellow brown
Take the key.