Somewhere in the world, there is a rare species of drone trees. They bloom in groups of three to seven. Each tree sings a song made up of two sets of sine waves. Its trunk shape is the embodiment of the same three sine waves. The shape morphs between two states affecting the sound accordingly.

Click for the sound to start. Check out the variations. The sound can be very different.

Better enjoyed on the big screen and dedicated speakers or headphones.