One of the world's oldest known musical instruments has been discovered by German archaeologists. The 18.7-centimetre-long flute, which is carved from mammoth ivory, has three finger holes and would have been capable of playing relatively complex melodies.
http://www.nature.com/news/2004/041213/full/041213-14.html
http://www.nature.com/news/2004/041213/full/041213-14.html