Mine (Zimbabwean 🇿🇼) is the mbira.
For a feel of the sound: https://youtu.be/R5RMYh-n3LU
Jah Prayzah the guy singing is a renowned musician.
They seem to be using the mbira in modernized covers, but the metal pestle order seem the same as the more traditional looking ones.
P/S I’m not self promoting the YouTube link. It just shows how the mbira sounds unedited.
USA alone is too easy, so I’m gonna go with Ohio. Edison invented the phonograph, which made listening to music anytime and anywhere a reality. The Wurlitzer organ was from Cincinnati, but i should be fair and say that while it was developed in Cincinnati, production was done in New York.
You could also add the Fender strat and the Gibson Les Paul to that list
Wait how are those ohioan