The Architecture of Music

The Circle of Fifths

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10

The Harmonics

sus4 Harmonic Intervals Diagram

You may have once heard someone tune a guitar using the harmonics, but probably have never thought about of how important they really are. In all the root chords and inversions diagrammed on the previous section, a harmonic or perfect 5th interval exists between two of the notes. Of all the chords found in research, only two, the augmented triad (4 4 4) and diminished triad (3 3 6), did not contain a harmonic or perfect 5th interval.