I found this fascinating quote today:
Mozart’s soothing rhythm A recent post by Dr Weil, Mozart and Premature Babies caught my attention. His blog brought back the memories of my time in the NICU. In Dr Weil’s post he talks about research done in Israel at Tel Aviv University. This study was about measuring the results of the effects on baby’s who were exposed to Mozart, and how his music encouraged these tiny sick babies to grow. The results showed that the babies responded positively to Mozart’s highly-repetitive rhythm much like their mother’s heart-beat in womb.weilbaby.com, Mozart’s Melodies Soothe Babies | Weil Baby Blog, Apr 1970
You should read the whole article.