Piano Master от chromethemer.com

Play and Record your favorite piano tunes on a virtual electric piano. Select between 40 different piano types, change color styles and show key bindings. It's easy to practice or play with Piano Master.

The Piano Master browser extension; Creates a custom icon in your browser after a few seconds of inactivity, that opens a pop-up link to Piano Master, right in your browser.

You can change between 40 different piano types and record what you play.