9edIX

This is the neutral scale of the Fujiyama temperament family.

Intervals

Phrygian Mode (aka Double) Neapolitan Temperament

Degrees	Minimum	Mean	Median	Golden	Maximum
1	see 9edo	140	145.4545	145.891	146.667
2		280	290.909	291.781	293.333
3		420	436.364	437.672	440
4		560	581.818	583.562	586.667
5		700	727.273	729.543	733.333
6		840	872.727	875.3435	880
7		980	1018.182	1021.234	1026.667
8		1120	1163.636	1167.125	1177.333

Phrygian-Aeolian Mode Neapolitan Temperament

Degrees	Minimum	Golden	Mean	Median	Maximum
1	146.667	148.392	149.524	151.111	152.381
2	293.333	296.7845	299.048	302.222	304.762
3	440	445.177	448.571	453.333	457.143
4	586.667	593.5659	598.095	604.444	609.524
5	733.333	741.961	747.619	755.556	761.905
6	880	890.354	897.143	906.667	914.286
7	1026.667	1038.746	1046.667	1057.778	1066.667
8	1177.333	1187.138	1196.1905	1208.889	1219.048

Aeolian Mode Neapolitan Temperament

Degrees	Minimum	Golden	Median	ed(9/4)	Mean	Maximum
1	152.381	154.714	155.556	155.99	156.1905	160
2	304.762	308.429	311.111	311.98	312.381	320
3	457.143	464.143	466.667	467.97	468.571	480
4	609.524	618.857	622.222	623.96	624.762	640
5	761.905	773.572	777.778	779.95	780.952	800
6	914.286	928.286	933.333	935.94	937.143	960
7	1066.667	1083	1088.889	1091.93	1093.333	1120
8	1219.048	1237.715	1244.444	1247.92	1249.524	1280

By coincidence, using an equivalence wider than 1350 cents is identical to repeating a fairly flat Napoli scale one tone later.