H4-37
Demonstrate some acoustical features of the trumpet.
Adding a trumpet mouthpiece and a funnel to the opposite ends of a flexible plastic tube creates a "flexible trumpet" which has all of the basic acoustical features of the real thing. The overtones are those of a valveless trumpet; like the trumpet, the fundamental is not good on the device. This uses the same mouthpiece as the demonstration Cornet H4-38.
H4