Don't choose too popular songs, don't choose too long songs. Try to choose music that can quickly impress the examiner. The performance in the first 3 minutes is very important, including the timbre, expressive force and intonation of posture instruments.
The introduction of piano learning should pay attention to:
Sitting posture is located in the middle of the piano, and the body is correct, natural and relaxed. 1/3 without filling the piano stool. Sit with your center of gravity straight or slightly forward, and don't lean backwards. The arm naturally hangs down, the forearm, wrist and hand are kept at the same parallel height with the piano, the elbow joint should not be pinched inward, and the wrist should be relaxed, neither higher than the palm nor lower than the keys.
When you put your hand on the piano, your palm is propped up, just like holding an egg in your hand. Five fingers stand on the keys of the piano and touch the keys with their fingertips. One finger corresponds to one key, and every joint of the finger should stand up. Open your thumb. When touching the keys, don't lie on the keys with your whole finger, but touch the keys with the first half.
At the beginning of learning, some joints are particularly prone to collapse, such as the metacarpal joint of the thumb and the first joint of the second, third and fourth fingers. If you play with this hand shape, the accuracy and firmness of your fingers will be affected, the keys will not be simple and tidy, and the sound will not be concentrated and complete.