This is coded xylophone for Makey Makey: C (space), D (up), E (down), F (left), G (right), A (W), B (A), and C' (S). They also correspond with boomwhacker colors. Finally, you can press the bars to make them play as well, though at this current time, they sound like an xylophone. I still need to record boomwhacker sounds into Scratch.
I was inspired by Makey Makey.