2. When pressing strings on the front of each finger of the left hand (except thumb), try to make an angle of 90 with the fingerboard.

3. Pull the four fingers of the left hand as far as possible, so that you can easily hold down the character 1-4.

4. Be familiar with all kinds of fingering and the taste of each sound.

5. When playing, put your right thumb in a fixed place, such as a pickup.

6. Play some simple rhythms.

7. Get used to mute with your left hand.

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