The question now being asked isn't if the bubble will burst but when. I can't answer that question. But I can tell you what it will sound like. It will sound like a piano solo.
At least that's how it will sound at
Listen To Bitcoin. Go to the website and you'll find a multitude of opaque bubbles, each appearing with a random note from a celesta--a keyboard instrument that sounds a bit like a vibraphone. Every 10 minutes or so there's an orchestral swell made from double basses along with a large square bubble, signifying a "Bitcoin block" (basically a set of transactions performed to synchronize the network). At slow times, the site sounds a bit like Brian Eno's Music for Airports. But when there is a flurry of transactions, the screen goes almost white with intersecting bubbles, and it sounds like there's a cat on the keyboard.