Sting instruments must be played or they go bad. Joe Grado (the original owner) tried to made a plastic violin using Bell Labs laser to "perfect" the proper resonance...the project was put on hold after awhile. I played a Strad......its major asset (there are many) was its ability to play to the balcony of the hall. My favorite violin is Guarneri. Trying to replicate the Strad sound is impossible .....they sound different with different bows.
Saving the sound of the Stradivarius
An interesting project is taking place in Cremona Italy. A link to a brief piece in the New York Times describes the effort to chronicle the sound of various Stradivarius instruments before they have lost their mojo.
https://www.nytimes.com/2019/01/17/arts/music/stradivarius-sound-bank-recording-cremona.html?action=...
https://www.nytimes.com/2019/01/17/arts/music/stradivarius-sound-bank-recording-cremona.html?action=...