Ah yes, the new chrome 66 update broke MPP because it now requires the AudioContext to be instantiated or resumed
after you interact with the page. (
https://goo.gl/7K7WLu for details) Brandon will be fixing this soon (he was going to do it last night but “got distracted.”). In the meantime, you can enable sound by typing the following command into the
console (after you click on the page):
MPP.piano.audio.context.resume();