Da Vinci, the Italian Renaissance genius who painted the Mona Lisa, invented the viola organista - which looks like a baby grand piano but never built it, experts say.
Read more: http://www.smh.com.au/entertainment/music/leonardo-da-vincis-wacky-piano-is-heard-for-the-first-time-after-500-years-20131118-2xpqs.html#ixzz2lByrXozn
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