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长号是流传于瑞士阿尔卑斯山区的传统乐器,形状像个长筒的喇叭,所谓“长”是指号筒长3~4米。后人对传统长号进行了改良,把号筒变成可拆卸的3节或4节,演奏完毕后可以拆开装包便于携带;而号手肩扛长号登场演奏时,就像猎人扛着猎枪。尽管长号体积大,但其结构很简单,没有按键和簧片,除了吹口和喇叭口外没有其他气孔,声音因吹奏者吹出的气流长短、强弱和嘴型的颤动变化而不同。时强时弱的气流和频率在3米长
Trombone is a traditional musical instrument spread in the Swiss Alps, shaped like a long horn, the so-called “long ” refers to the trumpet length of 3 to 4 meters. Future generations of the traditional trombone has been improved, the horn into a detachable 3 or 4, after playing can be opened to carry the package easy to carry; while trombone shoulder length trombone debut performance, like a hunter carrying Shotgun. Despite its large size, the trombone has a simple structure without buttons and reeds. There are no holes other than the mouthpiece and the bell mouth. The sound varies depending on the length of the airflow, the strength of the trumpet, and the flutter of the mouth. When strong and weak air current and frequency of 3 meters long