A robotic pianist called "Teotronica" performs at the Hannover Messe industrial trade fair in Hanover, central Germany on April 7, 2014. The Netherlands is the partner country of this year's trade fair running from April 7 to 11, 2014 and presenting a cross section of key industrial technologies. AFP PHOTO / JOHANNES EISELE (Photo credit should read JOHANNES EISELE/AFP via Getty Images)
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