Pretty cool, someone custom-built a record player that is able to "play" cross-sectional slices of tree trunks
http://www.livescience.com/33673-tree-rings-sound-record-player.html?cmpid=514627_20140304_19432734
http://www.livescience.com/33673-tree-rings-sound-record-player.html?cmpid=514627_20140304_19432734