Trumpet (Why Play Trumpet)-HK Trumpet Center

Why Play Trumpet

The trumpet is the highest brass instrument in register, above the horn, trombone, baritone, euphonium and tuba. A musician who plays the trumpet is called a trumpet player or trumpeter. The most common trumpet by far is a transposing instrument pitched in B flat - the note read as middle C sounds as the B flat 2 semitones below - but there are many other trumpets in this family of instruments.

The trumpet is made of brass tubing bent into a rough spiral. Although the bore is roughly cylindrical, it is more precisely a complex series of tapers, smaller at the mouthpiece receiver and larger just before the flare of the bell begins. Careful design of these tapers is critical to the intonation of the instrument. Sound is produced by blowing air through closed lips, producing a "buzzing" sound into the mouthpiece and starting a standing wave vibration in the air column inside the trumpet. The player can select the pitch from a range of overtones or harmonics by changing the lip aperture. There are three piston valves, each of which increases the length of tubing when engaged, thereby lowering the pitch. The first valve lowers the instrument's pitch by a whole step (2 semitones), the second valve by a half step (1 semitone), and the third valve by one-and-a-half steps (3 semitones). When a fourth valve is present, as with some piccolo trumpets, it lowers the pitch a perfect fourth (5 semitones). Used alone and in combination these valves make the instrument fully chromatic, i.e., able to play all twelve pitches of Western music. The sound is projected outward by the bell.

The mouthpiece has a circular rim which provides a comfortable environment for the lips' vibration. Directly behind the rim is the cup, which channels the air into a much smaller opening (the backbore or shank) which tapers out slightly to match the diameter of the trumpet's lead pipe. The dimensions of these parts of the mouthpiece affect the timbre or quality of sound, the ease of playability, and player comfort. Generally, the wider and deeper the cup, the darker the sound and timbre. Hong Kong Trumpet Center 香港小號中心 www.trumpet.com.hk