[youtube=http://www.youtube.com/watch?v=LQpnMDaF-a... ...years old and despite having no formal training, Adrian Mann of New Zealand decided that he was going to build...
https://www.neatorama.com/2009/04/06/worlds-largest-and-longest-piano-built-by-teenager-adrian-mann/
World's Largest and Longest Piano, Built by Teenager Adrian Mann
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