Leonardo da Vinci in 1480s invented a musical instrument called Viola Organista. However he never built it. For 500 years very few attempts were made to bring this project to life, moreover none of them fully succeeded. Until now. In 2012, after 4-years-long work, Sławomir Zubrzycki, Polish pianist and constructor, built the first concert Viola Organista and started a new chapter of its history.