Originally Posted by Burning Down

Then we waited until all the babies were born, and at 3 months of age 19 of them came back (one woman had unfortunately learned that her baby was completely deaf. She moved in the womb only because she could feel the vibrations). So we played the same version of Twinkle Twinkle again, but this time with an altered note. The babies were happy and laughing until the wrong note - all the babies just froze up with a confused look, and one actually cried a bit, lol. By that age, babies are capable of a basic interpretation of the sounds around them, based on what they heard while in the uterus. So that's why they were all confused by the wrong note.