I too need help on this !! Do you by chance know the answer yet!?
It depends on the exact field you're referring to (you categorized this under Arts, which is a bit confusing), but one answer could be resonance.
Answer: 8/10 Needs more B L U E
Explanation:
The modern trumpet has three valves and a bore that is partly cylindrical, partly conical. The standard orchestral trumpet, built in B-flat, has a range of about three octaves extending upward from the F-sharp be extending upward from the F-sharp below middle C(F3 sharp = 185 Hz).
