The idea of this game is that you can play piano on a computer in the same way that you would in real life. Once it gets onto the homescreen (this may take a while but it does come after a couple of seconds), select the timbre (type of sound) that you would like. To play a key, press the letter written on that key on the screen. Please note that the letters on the keys are NOT the actual note names. Also, I am very sorry but Scratch does not provide flat and sharp notes, and so it is not possible to play the black keys.
This project is mostly based on all the apps that people seem to love about playing the piano. Simple but effective- it allows you to play piano just like you would in real life. Also, I would like to mention that I chose the music at the beginning especially for Toppo2345 due to him getting annoyed every time he hears it :D