What keeps music fresh? Not ideas. Not interpretation.

Listening.

If the ear of the player is engaged repetition is impossible. Live sound comprises too many variables. Very young children are fascinated by them. It's too bad that they so easily get obscured by drilling and other mindless repetition.

All that is achieved by drilling and mindless repetition is the reduction of parental anxiety.

Is your child developing in conformity with other children the same age?
Are you getting your money's worth?