This world premiere exhibit offers journeys through the history and evolution of the guitar with displays of 60 classic and contemporary guitars plus hands-on activities that examine the science of sound. Discover why the guitar is one of the most widely recognized cultural symbols of our day. The exhibit counts with the world’s largest, fully-playable, multi-necked stringed instrument, the Rock Ock. Weighing 40 pounds, it has 154 frets, 51 strings and 51 tuning pegs. Comprised of a mandolin, ukulele, six-string, fretless bass, standard bass, 12-string, baritone guitar and a seven-string, it was designed by artist Gerard Huerta and built by Dan Neafsey of DGN Custom Guitars on commission by the National Guitar Museum.