Na-Yin (纳音), meaning “Received Sounds”, is an ancient Chinese metaphysical system used to correlating the Heavenly Stems (天干) and Earthly Branches (地支) to one of the Five Phases (五行) and specific symbolic Key (音), which is a combination of Tonic (律) and Mode (调)

SEXAGENERY-CYCLE correspondance with 60 MUSICAL-KEYS 納音

Shen Kuo wiki states: the SEXAGENERY-CYCLE have corresponding 60 KEYS wiki, which originates from the principle of the 12 TONICS wiki (based on 12 tones equal temperament wiki) times 5 MODES wiki (based on pentatonic scale wiki). One PITCH contains 5 KEYS, 12 PITCHES contains 60 KEYs.

# of Semitones wiki Interval wiki Short 12 TET Just intonation wiki Pythagorean tuning wiki 12-PITCHES 1/3 Loss and Gain
0 Perfect unison P1 2^(0/12) ⁠1/1⁠ 1/1 T0黄钟P1 1/1
1 Minor second m2 2^(1/12) ⁠16/15⁠ (2/3)^5 * 2^3 T1大吕m2 (3/2)^4 * (3/4)^3
2 Major second M2 2^(2/12) ⁠9/8⁠ (3/2)^2 * 1/2 T2太簇M2 3/2 * 3/4
3 Minor third m3 2^(3/12) ⁠6/5⁠ (2/3)^3 * 2^2 T3夹钟m3 (3/2)^5 * (3/4)^4
4 Major third M3 2^(4/12) ⁠5/4 (3/2)^4 * (1/2)^2 T4姑洗M3 (3/2)^2 * (3/4)^2
5 Perfect fourth (F) P4 2^(5/12) ⁠4/3 2/3 * 2 T5仲吕P4 (3/2)^6 * (3/4)^5
6 Tritone TT 2^(6/12) ⁠64/45 (2/3)^6 * 2^4 and (3/2)^6 * (1/2)^3 T6蕤宾TT (3/2)^3 * (3/4)^3
7 Perfect fifth P5 2^(7/12) ⁠3/2 3/2 T7林钟P5 3/2
8 Minor sixth m6 2^(8/12) ⁠8/5 (2/3)^4 * 2^3 T8夷则m6 (3/2)^4 * (3/4)^4
9 Major sixth M6 2^(9/12) ⁠5/3⁠ (3/2)^3 * 1/2 T9南吕M6 (3/2)^2 * 3/4
10 Minor seventh m7 2^(10/12) ⁠16/9⁠ (2/3)^2 * 2^2 TA无射m7 (3/2)^5 * (3/4)^5
11 Major seventh M7 2^(11/12) ⁠15/8 (3/2)^5 * (1/2)^2 TB应钟M7 (3/2)^3 * (3/4)^2
12 Perfect octave P8 2^(12/12) ⁠2/1 2/1 T0黄钟P8 (3/2)^6 * (3/4)^6
Mode Sequence of Intervals Relative to Major scale # of Semitones from Tonic for 1st-2nd-3rd-4th-5th degree wiki Example with Tonic T0黄钟
DOEARTH W-W-3/2-W-3/2 DO宫-RE商-MI角-SO徵-LA 0-2-4-7-9 T0黄钟P1-T2太簇M2-T4姑洗M3-T7林钟P5-T9南吕M6
REMETAL W-3/2-W-3/2-W DO宫-RE商-MI♯清角-SO徵-LA♯清羽 0-2-5-7-10 T0黄钟P1-T2太簇M2-T5仲吕P4-T7林钟P5-TA无射m7
MIWOOD 3/2-W-3/2-W-W DO宫-RE♯清商-MI♯清角-SO♯清徵-LA♯清羽 0-3-5-8-10 T0黄钟P1-T3夹钟m3-T5仲吕P4-T8夷则m6-TA无射m7
SOFIRE W-3/2-W-W-3/2 DO宫-RE商-MI♯清角-SO徵-LA 0-2-5-7-9 T0黄钟P1-T2太簇M2-T5仲吕P4-T7林钟P5-T9南吕M6
LAWATER 3/2-W-W-3/2-W DO宫-RE♯清商-MI♯清角-SO徵-LA清羽 0-3-5-7-10 T0黄钟P1-T3夹钟m3-T5仲吕P4-T7林钟P5-TA无射m7

Qi begins in the East and moves clockwise. KEYS begins in the West and moves counterclockwise. YIN and YANG intertwine, generating transformations. Qi begins in the East, the four seasons start with ㊍WOOD, pass to ㊋FIRE, pass to ㊏EARTH, pass to ㊎METAL, pass to ㊌WATER in sequence. KEYS begins in the West, the five notes start with ㊎METAL, pass to ㊋FIRE, pass to ㊍WOOD, pass to ㊌WATER, pass to ㊏EARTH.

SEXAGENERY-CYCLE FIVE-PHASES KEYS
00S0B0甲子 METAL REMETAL Mode on Tonic T0黄钟P1
01S1B1乙丑 METAL REMETAL Mode on Tonic T1大吕m2
02S2B2丙寅 FIRE SOFIRE Mode on Tonic T2太簇M2
03S3B3丁卯 FIRE SOFIRE Mode on Tonic T3夹钟m3
04S4B4戊辰 WOOD MIWOOD Mode on Tonic T4姑洗M3
05S5B5己巳 WOOD MIWOOD Mode on Tonic T5仲吕P4
06S6B6庚午 EARTH DOEARTH Mode on Tonic T6蕤宾TT
07S7B7辛未 EARTH DOEARTH Mode on Tonic T7林钟P5
08S8B8壬申 METAL REMETAL Mode on Tonic T8夷则m6
09S9B9癸酉 METAL REMETAL Mode on Tonic T9南吕M6
10S0B10甲戌 FIRE SOFIRE Mode on Tonic TA无射m7
11S1B11乙亥 FIRE SOFIRE Mode on Tonic TB应钟M7
12S2B0丙子 WATER LAWATER Mode on Tonic T0黄钟P1
13S3B1丁丑 WATER LAWATER Mode on Tonic T1大吕m2
14S4B2戊寅 EARTH DOEARTH Mode on Tonic T2太簇M2
15S5B3己卯 EARTH DOEARTH Mode on Tonic T3夹钟m3
16S6B4庚辰 METAL REMETAL Mode on Tonic T4姑洗M3
17S7B5辛巳 METAL REMETAL Mode on Tonic T5仲吕P4
18S8B6壬午 WOOD MIWOOD Mode on Tonic T6蕤宾TT
19S9B7癸未 WOOD MIWOOD Mode on Tonic T7林钟P5
20S0B8甲申 WATER LAWATER Mode on Tonic T8夷则m6
21S1B9乙酉 WATER LAWATER Mode on Tonic T9南吕M6
22S2B10丙戌 EARTH DOEARTH Mode on Tonic TA无射m7
23S3B11丁亥 EARTH DOEARTH Mode on Tonic TB应钟M7
24S4B0戊子 FIRE SOFIRE Mode on Tonic T0黄钟P1
25S5B1己丑 FIRE SOFIRE Mode on Tonic T1大吕m2
26S6B2庚寅 WOOD MIWOOD Mode on Tonic T2太簇M2
27S7B3辛卯 WOOD MIWOOD Mode on Tonic T3夹钟m3
28S8B4壬辰 WATER LAWATER Mode on Tonic T4姑洗M3
29S9B5癸巳 WATER LAWATER Mode on Tonic T5仲吕P4
30S0B6甲午 METAL REMETAL Mode on Tonic T6蕤宾TT
31S1B7乙未 METAL REMETAL Mode on Tonic T7林钟P5
32S2B8丙申 FIRE SOFIRE Mode on Tonic T8夷则m6
33S3B9丁酉 FIRE SOFIRE Mode on Tonic T9南吕M6
34S4B10戊戌 WOOD MIWOOD Mode on Tonic TA无射m7
35S5B11己亥 WOOD MIWOOD Mode on Tonic TB应钟M7
36S6B0庚子 EARTH DOEARTH Mode on Tonic T0黄钟P1
37S7B1辛丑 EARTH DOEARTH Mode on Tonic T1大吕m2
38S8B2壬寅 METAL REMETAL Mode on Tonic T2太簇M2
39S9B3癸卯 METAL REMETAL Mode on Tonic T3夹钟m3
40S0B4甲辰 FIRE SOFIRE Mode on Tonic T4姑洗M3
41S1B5乙巳 FIRE SOFIRE Mode on Tonic T5仲吕P4
42S2B6丙午 WATER LAWATER Mode on Tonic T6蕤宾TT
43S3B7丁未 WATER LAWATER Mode on Tonic T7林钟P5
44S4B8戊申 EARTH DOEARTH Mode on Tonic T8夷则m6
45S5B9己酉 EARTH DOEARTH Mode on Tonic T9南吕M6
46S6B10庚戌 METAL REMETAL Mode on Tonic TA无射m7
47S7B11辛亥 METAL REMETAL Mode on Tonic TB应钟M7
48S8B0壬子 WOOD MIWOOD Mode on Tonic T0黄钟P1
49S9B1癸丑 WOOD MIWOOD Mode on Tonic T1大吕m2
50S0B2甲寅 WATER LAWATER Mode on Tonic T2太簇M2
51S1B3乙卯 WATER LAWATER Mode on Tonic T3夹钟m3
52S2B4丙辰 EARTH DOEARTH Mode on Tonic T4姑洗M3
53S3B5丁巳 EARTH DOEARTH Mode on Tonic T5仲吕P4
54S4B6戊午 FIRE SOFIRE Mode on Tonic T6蕤宾TT
55S5B7己未 FIRE SOFIRE Mode on Tonic T7林钟P5
56S6B8庚申 WOOD MIWOOD Mode on Tonic T8夷则m6
57S7B9辛酉 WOOD MIWOOD Mode on Tonic T9南吕M6
58S8B10壬戌 WATER LAWATER Mode on Tonic TA无射m7
59S9B11癸亥 WATER LAWATER Mode on Tonic TB应钟M7

Kaoyuan (Investigation of Origins) ctext states:

  • Organized by beginning with Qi (energy) and ending with form, following the sequence of ㊌WATER, ㊋FIRE, ㊍WOOD, ㊎METAL, and ㊏EARTH as described in the Hongfan.
  • Organized by their generation across the four seasons, they follow the sequence of ㊍WOOD, ㊋FIRE, ㊏EARTH, ㊎METAL, and ㊌WATER as found in the Yueling.
  • Arranged based on the control and balance of materials, the sequence is ㊌WATER, ㊋FIRE, ㊎METAL, ㊍WOOD, and ㊏EARTH as seen in Yu’s Plan.

However, KEYS Five PHASES begin with ㊎METAL, followed by ㊋FIRE, then ㊍WOOD, ㊌WATER, and ㊏EARTH. This sequence neither adheres to the order of beginning and ending, nor does it derive from the principles of generation or control. Thus, commentators have been perplexed about its origin. Upon detailed examination, its meaning seems to trace back to the symbolic ideas of the Yi (Book of Changes), specifically aligning with the principles of the PRENATAL and POSTNATAL EIGHT-TRIGRAMES. To clarify this, separate diagrams can be made to illustrate these relationships.

图 图

KEYS FIVE-PHASES correspondence with PRENATAL EIGHT-TRIGRAM DIAGRAM

In the PRENATAL EIGHT-TRIGRAM DIAGRAM, ☰HEAVEN and ☱LAKE take the lead, belonging to ㊎METAL. Next comes ☲FIRE, belonging to ㊋FIRE, followed by ☳THUNDER and ☴WIND, belonging to ㊍WOOD. Then comes ☵WATER, belonging to ㊌WATER, and finally ☶MOUNTAIN and ☷EARTH, belonging to ㊏EARTH. This sequence begins with ㊎METAL and ends with ㊏EARTH, embodying the principle of “☰HEAVEN initiates, ☷EARTH completes.” ㊎METAL represents the firmness of Heaven, ㊏EARTH embodies the softness of the Earth, ㊋FIRE aligns with Heaven, ㊌WATER aligns with Earth, and ㊍WOOD, as the essence of life, occupies the central position. This sequence of KEYS is rooted in the order of the PRENATAL EIGHT-TRIGRAM DIRECTION.

KEYS FIVE-PHASES correspondence with POSTNATAL EIGHT-TRIGRAM DIAGRAM

In the POSTNATAL EIGHT-TRIGRAM DIAGRAM, ☰HEAVEN also takes the lead, but the sequence is reversed. Starting from ☰HEAVEN and ☱LAKE, ㊎METAL prospers in the West. It then transitions to ☲FIRE, where ㊋FIRE prospers in the South. Next, it moves to ☳THUNDER and ☴WIND, where ㊍WOOD prospers in the East, followed by ☵WATER, where ㊌WATER prospers in the North. ㊏EARTH prospers during the four seasons, and thus ☶MOUNTAIN and ☷EARTH are placed at the end. This arrangement of KEYS is rooted in the order of the POSTNATAL EIGHT-TRIGRAM DIRECTION.

The Na Yin Five Elements Divided into Three Cycles Corresponding to Musical Notes and Generating Each Other Across Eight Intervals

图 图

Starting with 00S0B0甲子 and 01S1B1乙丑 as the 3C-0上元UPPER-CYCLE of ㊎METAL, followed by 08S8B8壬申 and 09S9B9癸酉 as the 3C-1中元MIDDLE-CYCLE of ㊎METAL, and then 16S6B4庚辰 and 17S7B5辛巳 as the 3C-2下元LOWER-CYCLE of ㊎METAL, the THREE-CYCLES are completed. The sequence then transitions to the ㊋FIRE, beginning with 24S4B0戊子 and 25S5B1己丑 as the 3C-0上元UPPER-CYCLE of ㊋FIRE, Bingshen (丙申) and Dingyou (丁酉) as the 3C-1中元MIDDLE-CYCLE of ㊋FIRE, and Jiachen (甲辰) and Yisi (乙巳) as the 3C-2下元LOWER-CYCLE of ㊋FIRE. From this point onward, the sequence follows the progression of ㊎METAL, ㊋FIRE, ㊍WOOD, ㊌WATER, ㊏EARTH, as shown in the previous diagram. It adopts the principle of aligning with musical tones and uses the method of “same position marriage, generating across eight intervals” to complete the SMALL-CYCLE of MUSCIAL-KEYS, ending at 53S3B5丁巳. Subsequently, starting with 30S0B6甲午 and 31S1B7乙未 as the 3C-0上元UPPER-CYCLE of ㊎METAL, and following the same method, the sequence concludes at 23S3B11丁亥, completing the LARGE CYCLE of MUSICAL-KEYS.