I suggest the National Piano Guild Auditions - you can find a local piano school that conducts this exam and enroll your child in it. The guild sends a judge who is a very very experienced music teacher (ours this year was a college professor in piano with a ton of experience) and your child will audition their pieces for the judge and the judge will review every aspect of the music with the child and give advise and comments on how to improve as a musician and pianist. It is non-competitive and highly valuable to a budding pianist.
