MaKey MaKey Piano
This project is designed to work with a Makey Makey board, using all 11 of the standard keyboard inputs to play 11 notes on a keyboard.
You can see how it works from the code, of course, but briefly:
— hold down 'M' and press the left/right arrow keys to move the keyboard across the screen
— press 1, 2, 3, 4 or 5 to choose an instrument
— press 'I' and 'O' to transpose the sounds, so you can play along with a recording in a different key
This is based on a Scratch piano project by "Eric and Jay" (thanks, guys!)
I added a few keys to the keyboard, and added transposing, movement and instrument-changing features.