Hi Jojo
How old is your child?
For Yamaha parent need to sit in with your child for earlier stage. ( maybe 3 years) It is a good bonding time with your kids. good in training your child to enjoy music, listening, singing, express themselves with gesture and play by ear. The course is designed from Japan.
For cristofori, your children will attend the class by themselves. The course is designed in US. There are 4 levels to complete for the course. The course will focus more on recognizing the keys, notes reading, playing short melody, story telling and music theory. Activities like sing and move around, the composer's story.