First flute works!

The most important experiment is a success: the first flute made of an old pvc pipe works!! This easy experiment is at the same time the most important one; it answered the question of "go/no go". The pipe made of a copper tube didn't work. Copper would have had a cooleer look but at a 5 times higher cost.

the design is based on that clip on youtube:
http://www.youtube.com/watch?v=KXnAXsMyCFU