Theory of music in 24 video lessons with motion graphics

hi everyone!Ι love music theory.Ι teach and i have made an easy tutorial for grades 1,2,3,4.Check out youtube and if you like it join it.

Τheory of music (grades 1-4) with motion graphics, narration and 500 exercises, through 24 video lessons!
[The staff and the treble clef - YouTube]