<p>Peripheral Vision's live performance of the classic rock song "Good Time Bad Times" by Led Zeppelin was loud, fast and hard, echoing throughout The Promenade Shops in Center Valley.</p><p>Each drum roll, guitar lick and vocalization was infused with angst that was all the more striking considering the appearance of the musicians: Other than a female singer, the entire band was made up of casually dressed and well groomed middle-aged guys.</p><p>They looked like they might have just strolled out of one of the glass buildings in a nearby industrial park which, in fact, is what they did.</p><p>Peripheral Vision is comprised of seven employees of Olympus Corp. of the Americas, a division of the world's largest endoscope-maker, whose U.S. headquarters is at the Stabler Corporate Center, also in Center Valley.</p><p><a href="http://www.mcall.com/business/mc-olympus-corporate-band-20130927,0,7251589.story">Keep reading...</a></p>