MediaTools

MediaTools are Squeak-based tools for exploring media. They're especially great for live sound demonstrations.

Download MediaTools Windows or MediaTools Mac and unzip it. You'll get a ".image" file.
Visit http://www.squeak.org to get a Squeak VM (Virtual Machine) – for Windows, a .exe file; for Mac, a .app file.
Drag the .image file onto your VM.

Documentation for how to use MediaTools is in the Python Media Computation books.