If children can sing songs in their musical mother tongue - traditional children's songs or folk songs - from an early age, their artistic sensibilities based on national sentiments will greatly develop, and these traditional children's songs or folk songs can be sung not only as single-voice songs, but as multi-voice choruses. If it is made possible, the artistic quality and creativity of national art will increase and it will have a great impact on the growth of sociality. Based on Kodai's choral teaching method, we create, present, and distribute Korean choral works appropriate to the level of infants and toddlers. In addition, we expect the global spread of K-chorus content through the development of educational methods, production of educational accompaniment MR, and development of new technology convergence materials.