Minor seventh chord
JI Tunings
In the 5-limit:
- 10:12:15:18 is found on the iii (5⁄4) and vi (5⁄3) of Ptolemy's intense diatonic scale (Zarlino), perhaps the most common 5-limit diatonic.
- 27:32:40:48 is found on the ii (5⁄4) of Ptolemy's intense diatonic scale.