[pianotech] Floating bridge with a difference

[pianoguru at cox.net]

Wurlitzer did something very much like that probably 20-25 years ago. 
They cut three saw kerfs through the apron.  Since that divided the 
apron into four segments, they called it their "Quadro-sonic" bridge. 
Don't you just love the marketing language they make up for such things? 
As I recall, I was not particularly impressed with the perceived 
benefit.

Frank Emerson