A bizarre instrument combining a piano and cello has finally been played to an audience more than 500 years after it was dreamt up Leonardo da Vinci.

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.

The viola organista has now come to life, thanks to a Polish concert pianist with a flair for instrument-making and the patience and passion to interpret da Vinci’s plans.

Full of steel strings and spinning wheels, Slawomir Zubrzycki’s creation is a musical and mechanical work of art.