Penslen: Difference between revisions

From Xenharmonic Reference
mNo edit summary
mNo edit summary
Line 8: Line 8:


<math>
<math>
{}^{T} 7 = (2^{10}/3)^{\frac{1}{3}}
7 \to (2^{10}/3)^{\frac{1}{3}}
</math>
</math>


<math>
<math>
{}^{T} 11 = \frac{384}{35}
11 \to \frac{384}{35}
</math>
</math>



Revision as of 00:17, 27 December 2025

This page or section is a work in progress. It may lack sufficient justification, content, or organization, and is subject to future overhaul.

Penslen is an aberrismic ternary scale with structure 5L5m6s and the sole MOS substitution scale of type 6s(5L5m). It is one of the best scale structures with which to access the 7-limit by tempering out 1029/1024 (equating (8/7)^3 to 3/2), and 11-limit by tempering out 385/384 (equating 6/5 * 8/7 to 11/8). These commas are both small and low-complexity.

The simplest tuning is 31edo, which tempers out both of the relevant commas.

Tuning shown is just 2.3.5, Slendric 7, Portent (Slendric + Keenanismic) 11.

7(210/3)13

1138435

Mode A3 (msLsmLsmLsmsLmsL) Just-2.3.5 Tuning
0 1
3 702.0 51.6
2 468.0 1017.6
1 234.0 783.6
0 0.0 549.6
-1 966.0 315.6
-2 732.0 81.7
-3 498.0 1047.7
-4 264.1 813.7
Example Untempered Intervals
36/35 48.8
21/20 84.5
8/7 231.2
7/6 266.9
6/5 315.6
21/16 470.8
4/3 498.0
48/35 546.8
3/2 702.0
32/21 729.2
63/40 786.4
8/5 813.7
7/4 968.8
9/5 1017.6
64/35 1044.9
2/1 1200.0