The teacher observed the child's growth and development, estimated the child's palm span, and thought that it should be adjusted, so only half of 599 was studied, and it was determined according to the child's growth and development and bone condition to prevent adverse effects on the child's hand development.

The teaching version of Cherny's Elementary Piano Etudes 599 is a book published by Southwest Normal University Press in June 2000. The writer is Cherny.