Lesson Book 1 is pre-reading. Concepts taught are:
How to sit at the piano
Correct hand position
High and low
Loud and soft (forte and piano)
Bar line and measure
Quarter, half, whole notes and rests
The first pieces in the book are played on the black keys. Later in the book, C D E for the right hand and C B A for the left hand (Middle C position) are taught with letter notes (the name of the note is written inside the note head). Recommended for ages 4-6.