This record player reads tree rings instead of LPs

http://www.gizmag.com/record-player-reads-tree-rings/21198/

EXCERPT:

Artists often say they can find music in everything, particularly nature. The question they often face is how to get the general public to hear the same tune that they do. One German artist, Bartholomäus Traubeck, seems to have hit on one straightforward method to accomplish this with some clever technology. Using a digital camera and some software, the artist has built a unique record player that spins cross-sections of trees instead of vinyl and translates the rings into piano music.