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I propose to move the neutral second and neutral seventh sections to new articles in the same way as the neutral third and neutral sixth. --kupirijo (talk) 07:37, 19 September 2019 (UTC)[reply]
Just like what I mentioned here, the system of neutral intervals works for , or .
Rank of intervals
Degree
Diminished
Subminor
Minor
Perfect/Neutral
Major
Supermajor
Augmented
Unison/Octave
-7
-10.5
-3.5
0
3.5
10.5
7
Second
-12
-8.5
-5
-1.5
2
5.5
9
Third
-10
-6.5
-3
0.5
4
7.5
11
Fourth
-8
-11.5
-4.5
-1
2.5
9.5
6
Fifth
-6
-9.5
-2.5
1
4.5
11.5
8
Sixth
-11
-7.5
-4
-0.5
3
6.5
10
Seventh
-9
-5.5
-2
1.5
5
8.5
12
Major intervals are always 1 step wider than perfect/neutral intervals, while minor intervals are always 1 step narrower than perfect/neutral intervals.
Supermajor intervals are always 5 steps wider than diminished intervals, while subminor intervals are always 5 steps narrower than augmented intervals.
