12 books • 2 series
Major Scale Pro 1 (piano) (Lesson Enhancement, BK 1)
Major Scale Pro 2 (piano) (Lesson Enhancement, BK 2)
Theory for Busy Teens, Book 3 (Piano for Busy Teens, BK 3)
Theory for Busy Teens, Book 2 (Piano for Busy Teens, BK 2)
Theory for Busy Teens, Book 1 (Piano for Busy Teens, #1)
Theory for Busy Teens, Book B (Piano for Busy Teens, B)
Theory for Busy Teens, Book A (Piano for Busy Teens, A)
Piano for Busy Teens, Book A (Piano for Busy Teens, BK 1)
Piano for Busy Teens, Book B (Piano for Busy Teens, BK 2)
Piano for Busy Teens, Book 2 (Piano for Busy Teens, #2)
Piano for Busy Teens, Book 1 (Piano for Busy Teens, #1)
Piano for Busy Teens, Book 3 (Piano for Busy Teens, #3)