● Brass, copper spiral body, funnel-shaped mouthpiece, large bell mouth, composed of multiple parts, detachable.
The horn can play legato, break, and alternate and convert between the two. Add a mute and a variety of color specials that play the "blocking tone" and "occlusion" in the mouth of the right hand.
After the instrument is used up, the water in the tube should be removed. Because the saliva is acidic, it can reduce corrosion after removal.
Since the spring is made of steel wire, it is often rusted when it comes into contact with water. Therefore, after each stroke of the instrument, dry the spring and apply some white oil or sewing machine oil.
Lower B major, 1 is not pressed, 2 is 1, 2, 3 is 2, 4 is not pressed, 5 is 1 key, 6 is 1, 2, 7 is 2.
The high range 1 is not pressed, 2 is 12 keys, 3 is 2 keys, 4 is not pressed, and 5 is 1 key.
( The bass is the same as the midrange fingering )