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The essentials of music conductor's gesture
Hold your left hand above your head, and your right hand is parallel to your forehead. Push your right hand to the lower right, and your left hand to the lower left. In the process of going down again, open your fingers.
During the prelude, prepare your left hand to be parallel to your forehead, and hold your right hand above your head. At the beginning of the prelude, keep your left hand still, and press your right hand to the lower right. In the downward process, open your fingers, put your hands parallel to your ears, and then return to your original position. In the return process, close your fingers. Repeat this way until the prelude is over and start singing.
Extended information:
A music conductor refers to a person who stands in front of a band or chorus with a baton and gives instructions on how to play or sing in combination with body language when performing collective music.
The conductor holds the baton in his right hand (chorus conductors generally don't use it) to master the tempo; The left hand mainly expresses musical expressions such as strength and weakness. Facial expression, head and body movements are also an aspect of command.
Reference: Baidu Encyclopedia-Music Conductor