Here's a short improvisation on my 3D printed "Triple Tune" flute by TeleTunes, or "Tripfle", as I call this instrument. You can play just one of the pipes, or two, or all three together.

The instrument is available from Mauri's Etsy shop: https://www.etsy.com/shop/teletunes I'm not affiliated with the shop in any way, I'm just a fan of the instruments.