App: Conical Harmonics
First lower your volume. Then, to run this app, first click on the arrow button to activate the sound.
If you want the source code, you can download the zipped file if you agree to the Creative Commons License – Attribution-NonCommercial.
After you download the zip file, be sure to unzip to run. The file you want to run is conical.html. Double clicking on that file should open the app in your browser if it is HTML5 compatible. Chrome and Firefox should work fine.