the sound of wood Bartholomäus Traubeck

What a gorgeous idea! German Artist Bartholomäus Traubeck used cross sections of a tree, analysed the density and colour of the wood and translated it into a delicate piece of music.
Genius. 
You can go here to hear all the different types of wood he has made music from or buy a limited edition pressing of the music with a veneer of the wood on the B side.