Just scale

12.27  Just scale; scale of Just intonation. Musical scale formed by setting the major triads to have the frequency ratio 4:5:6 and the minor triads to have ratios of 10:12:15, which makes major and minor triads as consonant (smooth) as possible.

Annotation 1                  See Table 2.

Annotation 2                  For consecutive triads, the highest note notation of one triad is the lowest note of the next.