Editing Minor chord (section)

== Acoustic consonance of the minor chord ==
{{unreferenced section|date=March 2017}}
A unique particularity of the minor chord is that this is the only chord of three notes in which the three notes have one harmonic – hearable and with a not too high row – in common (more or less exactly, depending on the tuning system used). This harmonic, common to the three notes, is situated 2 octaves above the high note of the chord. This is the sixth harmonic of the root of the chord, the fifth of the middle note, and the fourth of the high note:

:In the example C, E{{music|flat}}, G, the common harmonic is a G 2 octaves above.

Demonstration:
* Minor third = 6:5 = 12:10
* Major third = 5:4 = 15:12
* So the ratios of minor chord are 10:12:15
* And the explication of the unique harmonic in common, between the three notes, is verified by : 10&nbsp;×&nbsp;6 = 12&nbsp;×&nbsp;5 = 15&nbsp;×&nbsp;4