How hard is Saxophone

[reeve21]

The designer of the saxophone, Belgian-born inventor Adolphe Sax, initially applied for 14 instrument patents on this day in 1846. He was living and working in Paris and that patent he filed for was French. His initial designs were also crafted from wood.
Read more: https://www.smithsonianmag.com/smart...Q4bBDjXdAws.99

I wonder how long it took for it to open up, how he humidified it, and if he used a toneright?

[H165]

The Rockwell hardness of yellow brass is F58.

Which is, as I recall, about the same as a tortoise shell pick.