Trumpet is one of the brass instruments. Of all brass instruments, trumpets have the highest pronunciation and sound. Trumpets use the high-level spectrum of the five line spectrum to mark the spectrum. The fixed pitch concept is used to perform.
There are two types of trumpet: the vertical key trumpet (the piston is the trumpet of up and down movement) and the flat key trumpet (the piston is the trumpet of rotary movement), among which the vertical key trumpet is the most widely used.
The trumpet consists of nozzle, tube body and mechanism. The length of the pipe is 1.355 m (down-b adjustment). The mechanical part is composed of piston and piston sleeve. The bypass pipe is connected by pressing the piston to achieve the purpose of extending the No. 1 pipe. The piston is divided into two types: the vertical type and the rotary type.