70:84:105:120
| Chord information |
sub-6 or s6
70:84:105:120, the harmonic sixth chord, is a tetrad in 7-limit harmony. It is the inverse of 4:5:6:7, the harmonic seventh chord. See also its homonym 60:70:84:105 (a minor 7th flat-5th chord or half-diminished chord).