Lizard IQ

Sometime before, our doorbell failed to make its usual sound, so we went to fix it one weekend. While we were tinkering with the end of the doorbell that was in the house, we found something interesting.

There were lizard eggs, already hatched and with the baby lizards already gone.

They say that music affects babies while in the womb. Does it work on lizards in eggs too? If so, what kind of lizards have they become?