In a roundabout way, that reminds me of some people on the music/synthesizer boards that are obsessed with finding that one unique sound that no one ever heard that just blows everyone away. Which is fine. Always good to strive for improvement. But a piano has sounded like a piano for hundreds of years, yet people write new unheard songs on it all the time.
I have a Roland Integra 7 rack synth. It can create pretty much all the sounds on any record ever including string sections and banjos and has high quality samples onboard from their top of the line digital piano.
The Piano gets used the most ;)
A newly discovered or invented unique sound is fine, but the APPLICATION of that sound is key to uniqueness. As relevant as “Rests are just as important as notes.” Even, or maybe especially, articulation with that “unique” sound is more important than the “new/unique” sound itself.