a small flute made of bamboo, the sound is loud, how to use it: blow and the hand presses or pushes the stick up and down

39aph39 art background bamboo blow blue branches brown bunch children closeup craft decoration dry environment environmental environmentally equipment floor flooring flute flutes friendly furniture garden green hand handmade hardwood industry iron it leaf light line loud lumber manufacturing material materials natural nature outdoor pattern piece pieces pile plant presses product pushes raw red reflection roof rough round segmented small sound stack stick straw texture timber toy traditional tropical trunk use wall wing wood wooden yellow