... hold pottery flute at the bottom, to prevent the pottery flute finger placed in fall.Three, to pulp gently pressing hole, not ... intermittently.In four, short and stress required the use of "kick the tongue" skills, the tip of the tongue against the roof of the teeth and gums ... try as he", so the voice sounds clear and strong, lively and joyful feeling.Five, portamento: opening and closing of stomata, is ...