Great Tube - it contains many new ideas for creatively using Boomwhackers. The authors describe playful ways to learn, improve, or solidify rhythm and sound, harmony and improvisation, composition and arrangement, as well as movement and choreography. The games offered here are based on careful observation of the properties and possibilities of Boomwhackers in practice. Developmental psychological insights into group dynamics have significantly influenced the selection of games. Great Tube is aimed at educators in schools, leisure activities, and social work who play with children from age 4, teenagers, adults, and seniors, and who also enjoy working without sheet music. Those who like to practice music playfully and take pleasure in improvising and trying new things can connect music with movement and dance in new ways here.