Babies do not like loud noises so try to use soft soothing, gentle voices. Babies respond better to high-pitched sound. If you do not feel like chatting to your baby sing or croon to her. Even young babies seem to enjoy nursery ryhmes and simple songs that have a define rhythm and rhyming sound. Work in child development has also shown that children who are sung early in their lives seems to develop a facility for words in general and for speaking and reading..

They say that it is good for mothers as early as their pregnancy to let their babies hear sounds and when mothers do baby talks.  In that way they say that babies grow up more attached to their mothers. 

I agree too. My baby is so attracted to Nursery Rhymes. Whenever he is crying, I will put the songs and he will stop crying and sometimes I do sing for him too. He really enjoys it. Lately, he start to dance when he hears the songs. He loves it.