Does Playing Classical Music Make Your Baby Smarter?

Some people say playing classical music while a baby is in utero will make them smarter, but is this actually true?

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Playing along with the Mozart effect (LA Times)
"But for all its beauty, power and capacity to move, researchers have concluded that music is little more than ear candy for the brain if it is consumed only passively."

Prenatal Music Exposure Induces Long-Term Neural Effects (PLoS)
"Our results show that extensive prenatal exposure to a melody induces neural representations that last for several months."