I found the article in our about The Mozart Effect to be rather interesting. The article described that a group of students that listened to a Mozart piano sonata shows a significant improvement on a spatial reasoning task compared to a group that listened to a relaxation tape.
The press soon got ahold of these results and ran with them. Before long companies were making Mozart tapes and CD's geared towards babies, claiming that they will boost an infant's intelligence. But can listening to a certain genre of music really make a child smarter?
Later research showed that the effect shown in the college students was due an increase in emotional arousal. Short-term arousal boosts alertness and is likely to increase performance on mentally demanding tasks. So while it can be a good idea to let young children listen to Mozart's work, it won't turn them into tiny geniuses.