In what happens to be one of the coolest art projects I've seen in quite some time, "Years" takes a modified record player and a thin slice of a tree, and combines them to form something...well, amazing:
Why yes, that old turntable IS playing the rings of a tree. From Traubeck.com, a description of the piece:
A tree’s year rings are analysed for their strength, thickness and rate of growth. This data serves as basis for a generative process that outputs piano music. It is mapped to a scale which is again defined by the overall appearance of the wood (ranging from dark to light and from strong texture to light texture). The foundation for the music is certainly found in the defined ruleset of programming and hardware setup, but the data acquired from every tree interprets this ruleset very differently.
[h/t: the Daily What]