Buzurgismic chords: Difference between revisions

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'''Buzurgismic chords''' are [[Dyadic chord|essentially tempered dyadic chords]] tempered by the buzurgisma, [[169/168]].
'''Buzurgismic chords''' are [[Dyadic chord|essentially tempered dyadic chords]] tempered by the buzurgisma, [[169/168]].


The [[buzurgismic]] temperament is very comparable to the [[Biyatismic temperaments|biyatismic]] temperament. It has two triads, nine tetrads, seven pentads and one hexad in the 2.3.7.13 subgroup [[13-odd-limit]].
The [[buzurgismic]] temperament is very comparable to the [[biyatismic]] temperament. It has two triads, nine tetrads, seven pentads and one hexad in the 2.3.7.13 subgroup [[13-odd-limit]].


The two buzurgismic triads are in inverse relationship:  
The two buzurgismic triads are in inverse relationship:  
* 1-7/6-13/8 with steps 7/6-18/13-16/13;  
* 1–7/6–13/8 with steps 7/6, 18/13, 16/13;  
* 1-18/13-13/8 with steps 18/13-7/6-16/13.
* 1–18/13–13/8 with steps 18/13, 7/6, 16/13.


For tetrads, there are three palindromic chords and three pairs of chords in inverse relationship. The palindromic chords are  
For tetrads, there are three palindromic chords and three pairs of chords in inverse relationship. The palindromic chords are  
* 1-9/8-18/13-13/8 with steps 9/8-16/13-7/6-16/13;  
* 1–9/8–18/13–13/8 with steps 9/8, 16/13, 7/6, 16/13;  
* 1-3/2-13/8-13/7 with steps 3/2-13/12-8/7-13/12;  
* 1–3/2–13/8–13/7 with steps 3/2, 13/12, 8/7, 13/12;  
* 1-13/12-18/13-3/2 with steps 13/12-9/7-13/12-4/3.  
* 1–13/12–18/13–3/2 with steps 13/12, 9/7, 13/12, 4/3.  


The inversely related pairs of chords are  
The inversely related pairs of chords are  
* 1-18/13-3/2-13/8 with steps 18/13-13/12-13/12-16/13, and its inverse
* 1–18/13–3/2–13/8 with steps 18/13, 13/12, 13/12, 16/13, and its inverse
* 1-13/12-3/2-13/7 with steps 13/12-18/13-16/13-13/12;
* 1–13/12–3/2–13/7 with steps 13/12, 18/13, 16/13, 13/12;
* 1-13/12-3/2-7/4 with steps 13/12-18/13-7/6-8/7, and its inverse
* 1–13/12–3/2–7/4 with steps 13/12, 18/13, 7/6, 8/7, and its inverse
* 1-18/13-3/2-12/7 with steps 18/13-13/12-8/7-7/6;
* 1–18/13–3/2–12/7 with steps 18/13, 13/12, 8/7, 7/6;
* 1-7/6-3/2-13/8 with steps 7/6-9/7-13/12-16/13, and its inverse
* 1–7/6–3/2–13/8 with steps 7/6, 9/7, 13/12, 16/13, and its inverse
* 1-9/7-3/2-13/7 with steps 9/7-7/6-16/13-13/12.  
* 1–9/7–3/2–13/7 with steps 9/7, 7/6, 16/13, 13/12.  


For pentads, there are one palindromic chord and three pairs of chords in inverse relationship. The palindromic chord is  
For pentads, there are one palindromic chord and three pairs of chords in inverse relationship. The palindromic chord is  
* 1-9/8-18/13-3/2-13/8 with steps 9/8-16/13-13/12-13/12-16/13.  
* 1–9/8–18/13–3/2–13/8 with steps 9/8, 16/13, 13/12, 13/12, 16/13.  


The inversely related pairs of chords are  
The inversely related pairs of chords are  
* 1-13/12-7/6-3/2-13/8 with steps 13/12-13/12-9/7-13/12-16/13, and its inverse
* 1–13/12–7/6–3/2–13/8 with steps 13/12, 13/12, 9/7, 13/12, 16/13, and its inverse
* 1-9/7-18/13-3/2-13/7 with steps 9/7-13/12-13/12-16/13-13/12;  
* 1–9/7–18/13–3/2–13/7 with steps 9/7, 13/12, 13/12, 16/13, 13/12;  
* 1-13/12-7/6-3/2-7/4 with steps 13/12-13/12-9/7-7/6-8/7, and its inverse
* 1–13/12–7/6–3/2–7/4 with steps 13/12, 13/12, 9/7, 7/6, 8/7, and its inverse
* 1-9/7-18/13-3/2-12/7 with steps 9/7-13/12-13/12-8/7-7/6;  
* 1–9/7–18/13–3/2–12/7 with steps 9/7, 13/12, 13/12, 8/7, 7/6;  
* 1-13/12-3/2-13/8-7/4 with steps 13/12-18/13-13/12-13/12-8/7, and its inverse
* 1–13/12–3/2–13/8–7/4 with steps 13/12, 18/13, 13/12, 13/12, 8/7, and its inverse
* 1-18/13-3/2-12/7-13/7 with steps 18/13-13/12-8/7-13/12-13/12;  
* 1–18/13–3/2–12/7–13/7 with steps 18/13, 13/12, 8/7, 13/12, 13/12;  


Finally, there is a palindromic hexad,  
Finally, there is a palindromic hexad,  
* 1-13/12-7/6-3/2-13/8-7/4 with steps 13/12-13/12-9/7-13/12-13/12-8/7.  
* 1–13/12–7/6–3/2–13/8–7/4 with steps 13/12, 13/12, 9/7, 13/12, 13/12, 8/7.  


Equal temperaments with buzurgismic chords include {{Optimal ET sequence|7, 9, 10, 17, 19, 26, 27, 36, 46, 53, 63 and 72}}.
Equal temperaments with buzurgismic chords include {{Optimal ET sequence|7, 9, 10, 17, 19, 26, 27, 36, 46, 53, 63 and 72}}.


[[Category:13-odd-limit]]
[[Category:13-odd-limit chords]]
[[Category:Essentially tempered chords]]
[[Category:Essentially tempered chords]]
[[Category:Triads]]
[[Category:Triads]]

Latest revision as of 13:42, 19 March 2025

Buzurgismic chords are essentially tempered dyadic chords tempered by the buzurgisma, 169/168.

The buzurgismic temperament is very comparable to the biyatismic temperament. It has two triads, nine tetrads, seven pentads and one hexad in the 2.3.7.13 subgroup 13-odd-limit.

The two buzurgismic triads are in inverse relationship:

  • 1–7/6–13/8 with steps 7/6, 18/13, 16/13;
  • 1–18/13–13/8 with steps 18/13, 7/6, 16/13.

For tetrads, there are three palindromic chords and three pairs of chords in inverse relationship. The palindromic chords are

  • 1–9/8–18/13–13/8 with steps 9/8, 16/13, 7/6, 16/13;
  • 1–3/2–13/8–13/7 with steps 3/2, 13/12, 8/7, 13/12;
  • 1–13/12–18/13–3/2 with steps 13/12, 9/7, 13/12, 4/3.

The inversely related pairs of chords are

  • 1–18/13–3/2–13/8 with steps 18/13, 13/12, 13/12, 16/13, and its inverse
  • 1–13/12–3/2–13/7 with steps 13/12, 18/13, 16/13, 13/12;
  • 1–13/12–3/2–7/4 with steps 13/12, 18/13, 7/6, 8/7, and its inverse
  • 1–18/13–3/2–12/7 with steps 18/13, 13/12, 8/7, 7/6;
  • 1–7/6–3/2–13/8 with steps 7/6, 9/7, 13/12, 16/13, and its inverse
  • 1–9/7–3/2–13/7 with steps 9/7, 7/6, 16/13, 13/12.

For pentads, there are one palindromic chord and three pairs of chords in inverse relationship. The palindromic chord is

  • 1–9/8–18/13–3/2–13/8 with steps 9/8, 16/13, 13/12, 13/12, 16/13.

The inversely related pairs of chords are

  • 1–13/12–7/6–3/2–13/8 with steps 13/12, 13/12, 9/7, 13/12, 16/13, and its inverse
  • 1–9/7–18/13–3/2–13/7 with steps 9/7, 13/12, 13/12, 16/13, 13/12;
  • 1–13/12–7/6–3/2–7/4 with steps 13/12, 13/12, 9/7, 7/6, 8/7, and its inverse
  • 1–9/7–18/13–3/2–12/7 with steps 9/7, 13/12, 13/12, 8/7, 7/6;
  • 1–13/12–3/2–13/8–7/4 with steps 13/12, 18/13, 13/12, 13/12, 8/7, and its inverse
  • 1–18/13–3/2–12/7–13/7 with steps 18/13, 13/12, 8/7, 13/12, 13/12;

Finally, there is a palindromic hexad,

  • 1–13/12–7/6–3/2–13/8–7/4 with steps 13/12, 13/12, 9/7, 13/12, 13/12, 8/7.

Equal temperaments with buzurgismic chords include 7, 9, 10, 17, 19, 26, 27, 36, 46, 53, 63 and 72.