Submerged

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Submerged
Subgroups 2.3.5.7, 2.3.5.7.11, 2.3.5.7.11.13
Comma basis 525/512, 3125/3087 (7-limit);
121/120, 441/440, 525/512 (11-limit);
65/64, 105/104, 121/120, 441/440
(13-limit)
Reduced mapping ⟨1; 11 -1 -9 5 1]
ET join 16 & 29
Generators (CWE) ~8/5 = 827.0 ¢
MOS scales 3L 7s, 3L 10s, 13L 3s
Ploidacot zeta-hendecacot
Minimax error 9-odd-limit: 13.2 ¢;
13-odd-limit: 14.7 ¢
Target scale size 9-odd-limit: 45 notes;
13-odd-limit: 45 notes

Submerged is a temperament generated by a sharply tuned minor sixth (or its octave complement, a flatly tuned major third, adopted by this article for a comparison with magic), tempering out the submerged comma in the 5-limit. The major third is slightly flat of magic's major third, which itself is slightly flat of a just 5/4, making submerged's generator arguably a submajor third. The comma's monzo is [-27 1 11, which implies that eleven 8/5's minus seven octaves stack to make a 3/2, thus making its ploidacot zeta-hendecacot.

For limits higher than 5, nine 5/4's stack to reach 7/4, and it tempers out 525/512 and 3125/3087 in the 7-limit, and in the 11-limit, 441/440 and 121/120. In the 13-limit, in addition to tempering out 105/104, if we look at a submerged third, it sits in between 16/13 and 5/4, and a very logical thing to do is to temper out the difference between these two intervals, thus also tempering out 65/64.

Possible tunings include 16edo, 29edo, and 45edo.

Submerged was named by Fitzgerald Lee as a play on the term "submajor third".

See Avicennmic temperaments #Submerged for technical data.

Interval chain

In the following table, odd harmonics 1–15 and their inverses are in bold.

# Cents* Approximate ratios
0 0.0 1/1
1 372.6 5/4, 16/13
2 745.2 25/16, 32/21
3 1117.8 40/21
4 290.4 25/21
5 663.0 16/11
6 1035.6 20/11
7 208.2 28/25
8 580.8 7/5
9 953.4 7/4
10 126.0 16/15
11 498.6 4/3
12 871.2 5/3
13 43.8 25/24

* In 5-limit CTE tuning

Scales

Submerged generates the mos scales 3L 4s, 3L 7s, 3L 10s and 13L 3s.

Tunings

Tuning spectrum

Edo
generator
Unchanged interval
(eigenmonzo)
Generator (¢) Comments
4\13 369.231 Major thirds slightly flatter than this fall under 13&23
75/64 369.491 1/9-comma
15/8 371.173 1/10-comma
8\29 372.414 Lower bound of 7-odd-limit diamond monotone
3/2 372.550 1/11-comma
14\45 373.333 45ef val
5/3 373.697 1/12-comma
25/24 374.667 1/13-comma
5\16 375.000 Upper bound of 7-odd-limit diamond monotone, major thirds slightly sharper than this fall under magic

See also

  • 26/21, the 13-limit submajor third