I'm not a flute player as you will notice from the 1st milisecond, but got this new instrument which is really cool and I had to share it with yous. So when you play like in a regular flute it also produces an extra sound of a 1st, 5th or octave - you decide which with a cork... and when you press a wee thing with your thumb it sounds like a flute, but when you don't it's a more harsh sound. I like it!

link to youtube channel