On 5/31/2021 3:43 PM, micky wrote:
In alt.home.repair, on Tue, 1 Jun 2021 07:32:24 +1000, "Rod Speed"
wrote:


There are no valves on a bugle, so the buglar's voice,
I guess it is, determines the pitch.

There is no voice involved, the bugler blows into the bugle.

I know that he blows but he does more than that. How does he change
the pitch? Assume I put "voice" in quotes.

What you asked was very clear.