Ergonomically curved keyboard? Need to try it! Ooooh a price tag of €/$ 333,000 ...
"One of the earliest remaining pianos to feature a #curvedkeyboard was developed by Scandanavian piano maker Olof Granfeldt, [one such #piano] is currently on display at the #SibeliusMuseum in Finland."
Can't remember if I saw the #Granfeldt piano when I visited the museum 10 years ago in Turku, but about time I go again anyway!
https://www.worldpianonews.com/new-product/acoustic/curved-keyboards/