*Uses your webcam!* Use your fingers to play the piano! Use your mouse to move the keys to a comfortable place, and click each key to turn it on or off. If a key is dark, that means it is turned off. If a key is white, then the key is turned on. Use the sliders at the bottom of the screen to turn on/turn off the tempo sounds, and to adjust the tempo speed. :)
Feel free to remix this project, and do what you want with it. :) It only took me 20 minutes to make it.