Mellotronists

That's the hella craziest keyboard I've ever seen. When I first saw 
the thing, I thought you tip it up on its left side and play it like 
a squeezebox button accordion Acadian style. The short power cord 
kind of limits strutting your stuff on stage however! I just can't 
imagine someone seated in front of it with its lovely red painted 
stand and playing it with two hands like a piano...especially 
buttons meant to be played reaching down from the long side like an 
accordion on a neckstrap. 

No wonder Italians have such a pool of great prog keyboard players. 
They first have to master something like this.