A good analogy would be to visit "Jurassic Park" and seeing a LIVE Tyrannosaurus Rex
Unfortunately "Jurassic Park" is a fantasy brought to life on a movie screen...
This organ, on the other hand, was built from the "pedals up" with 300 year-old documentation, and using identical materials and tools as would have been done by Dom Bedos himself.
There are, however, some videos (with poor camera audio
extant on Youtube of this instrument
being played prior to the inauguration... and with a "forensic ear" one can "listen through" the nasty
camera audio... Not unlike digging up dinosaur bones and trying to figure out what the animal around that skeleton looked like
As good a "signal processor" as our brain is, this process is tiring to say the least
Much easier to hear the real thing with real ears, provided one has "transportation"...