Play piano!

[Krazete]

I'd like some more example songs for piano.js, but I'm barely learning piano.
So let me hear you play!

1. Bookmark the piano.js code from the README.md.
2. Open it on a website that works (e.g. not GitHub, Facebook, Gmail, etc.).
3. Read the Usage section on the README.md.
4. Play around with the keys, buttons, and options to get used to it.
5. Press space to start recording.
6. Play a song!
7. Press the ⬆︎ button.
8. Open the console and find your disc recording (if you didn't press the ⬇ button, then it's Disc 0).
9. Copy and paste your disc into piano.js (somewhere under line 61).
10. Submit a pull request.

Hopefully that's not too complicated. If it is, here's a demo.

[Warning: Possible sound glitches as noted in issue #2. Turn your volume down before first use.]