White notes are "Da", hand across, black notes are "dee", hand down.
The later tracks add a few more notes and sound progressively more like "regular music".
The book that comes with the 41 track CD has easy to follow sheet music and teaching suggestions.
Cost: $25.00 includes shipping. ISBN # 0-9746453-0-3.
Sample of a later lesson
Why Da-di Songs will make teaching easy and effective
Free Tips for Preschool Teachers
Fun Lesson Plans, Ideas & Resources for Parents and Teachers of Toddler Music Groups and Classes