Use the up and down keys to move the music note up and down the staff. Press space to save the note. Press the right arrow to get a half note. Press the left arrow to get back. Press P to play your song.* Press S to get to the song menu. Press M to make a chord. *The first time you play your song it might not start at the beginning, or it might not play all the notes.
All I did was fix some bugs and I added an easter egg. Anyone who finds it please comment. As of August 3rd, I have updated the half note system so if it did not work shortly before that, it was because this project was still under construction. Again, Inspired by James546372819000's scratchy computer. Link here: http://scratch.mit.edu/projects/2275347/ UPDATE: Added Chopsticks!