What happens next?

How to choose a piano teacher for your child
Research music schools in your area.
Look for local conservatories and fine arts academies that you might be able to enroll your child in. There, they'll receive the foundations of classical music education, from learning to read sheet music to identifying various time signatures.
Most cities have schools that welcome students of all different age ranges, including early childhood. If a particular school catches your attention, call and speak with an instructor directly to get more information about the services they provide.