JAM with friends is a live piano you can play with your friends built on Appbase. Read the blog post on how it works here.

You can simply run a http-server on the root directory using 'python -m SimpleHTTPServer 8080' and run the app on http://localhost:8080!

The app name and secret are published in the code, so you can just keep hacking on this repository! See the Appbase Javascript API.

Ideally, you should create your own app on Appbase, so you can isolate your data records from everyone else.

You can also use this with Node.js runtime, and keep your app secret secret from prying eyes!

jam-with-friends is freely distributable under MIT License.

Credits: See the HTML5 JavaScript Piano live.