The puzzle, task, and coloring books by Katharina Apostolidis have become a proven standard repertoire in music schools. With age-appropriate concepts, children curiously explore the world of notes and note values. Small learning steps with many opportunities for increasing difficulty characterize these editions, which are completely versatile and therefore suitable as a companion book for any school, for any instrument, and in any teaching format. For learning bass clef notes with dice games and note puzzles.