Abstract: A musical notation system is provided wherein the twelve pitches of the 12-TET tuning system are represented by horizontal lines placed at the top, center and bottom of four different reference heads. Pitches, intervals chords and scales degrees are named by the positions of these lines at the reference heads and by the relationship between them. Assistant is provided to performers by representing the correlation between these reference heads and positions or keys in the musical instruments as well as a method to aid identify intervals, scale degrees and pitches. Relative note-on is represented in a timing row with demarcation of beats and measures; note-off is represented by the end of the lines as a proportional indication of the duration of sound.