How to make handmade musical instrument flute?

Preparation tools: a bamboo, an iron bar.

1, prepare a 50CM bright green bamboo.

2, in the bamboo head position marked a A point.

3, and then in the position of 10CM from the A point to mark a mark, here to 1 point as a mark.

4, 2 centimeters from the "1 point" to mark a point, marked as "2 points", and so on in this order to mark three points. The last point is marked as "5 points", 3 centimeters from the "5 points" mark a point. As shown below:

5, then the head of an iron rod sharpened, heated with fire.

6, after the iron rod is hot, the bamboo through, and then to the bamboo drawn points to punch holes.

7, finally the flute is finished.