What is the sound principle of the organ?

This organ has three parts: one is a device to force air into the pipeline, the other is a series of sound tubes, and the third is a mechanism connected with the keys to control the air in and out. There are hundreds of sound tubes in an organ, which are made of wood or metal. Some are equipped with reed pores, which are called reed tubes, while others have only one pore, which is called trachea. The length of the sound tube controls the pitch, and the longer the sound tube, the lower the sound. Even sound tubes with the same size produce different timbres because they belong to different sound tube groups.

The sound tube stands on the bellows, and the lower end of the bellows has compressed air. The control key on the piano is called the sound plug, which is used to select the sound tube group. The lower end of the sound tube is provided with two parts for controlling sound production; One is a flute and the other is a reed. Compressed air must be found through one of the metal "tongues". There can be three or more keyboards controlled by both hands and pedals controlled by both feet in the organ.

accordion

The sound of accordion comes from bellows. To open the bellows, you must press the left accompaniment button with your left hand. Only this button can open the bellows. The control of the volume is also the strength of pulling the bellows outward by pressing the button.