For any child engaged in learning to play an instrument, one of the significant hurdles in his musical education is the point when he has to make sense of sheet music.  The arcane bars and symbols found in the pages of any conventional music book can, after all, be daunting to understand, regardless of one’s age.  Musical notes are a language all their own, at once both foreign and universal, within which lie the keys to practically all the music composed in human history.