The standard western music notation for the major and minor chords is avail- able in the world. But the understanding of major and minor chords is very difficult for learning peoples particularly children’s. It is very complicated to memory of all major and minor chords and also roots of all chords. This inven- tion is easily understand by children and easily captured in standard piano and other instruments. The new method of conveying chords by numerical tech- niques is used in this invention. The octave notes are derived in to two different heads of major and minor chords by numerical method. There are two main equations are implemented and it is very easy to understanding of all major and minor chords.