Riddle: What's the answer to the riddle about the organ?

Tip: The common organ, which looks like a upright piano, is a musical instrument played with a two-handed keyboard and supplied with air through the big pedal at the foot. The pedal blows into the air duct. If you don't play, the whole air duct is closed. When a finger presses a key, the sound tube plug of the corresponding key is opened, air flows through, the sound tube is blown, and music sounds are made.

Mystery: It's strange that balloons are bellows. When it is pulled, it can sing. Answer: accordion riddle: A row of teeth is much whiter, and you can sing with one breath in your stomach. As long as you grind your teeth, you can sing vigorously (Playing a musical instrument) Answer: The mystery of the organ: Its belly is strange and changing rapidly. It is full of songs, and every capital is shrinking and laughing. (Playing a musical instrument) Answer: Accordion riddle: You should not only step on it with your feet, but also touch it with your hands. Press hard on your face and you will sing in your stomach. (Playing a musical instrument) Answer: Organ riddle: Flexible belly, full of singing. Answer: accordion riddle: square head, big belly, full of music, chest-high singing, belly-in. The answer is: accordion.