I Taught a Browser to Play Piano — Here's How It Figures Out Which Finger Goes W

<p>Most piano practice tools measure speed.</p> <p>Some measure note accuracy.<br /> Some turn practice into a game.<br /> Some help beginners learn what key to press next.</p>

<p>I wanted a "Google Docs for sheet music": open a browser tab, start writing notation, share a URL, and have someone else edit the same score with you in real time. Nothing like