Laka: Difference between revisions

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| Odd limit 2 = 13-limit 21 | Mistuning 2 = 3.20 | Complexity 2 = ?

}}

'''~~Laka~~''' ~~is a~~ [[rank-3 temperament]] ~~generated by a perfect fifth~~ of [[~]][[~~3/2~~]] ~~and a step for the~~ [[~~81/80|syntonic~~]]~[[~~64/63~~|~~septimal comma~~]] ~~to reach~~ the ~~interval classes of~~ [[5/1|5]], [[7/1|7]]~~, and higher~~ [[~~prime harmonic~~|~~primes~~]]~~. Using an arrow to represent this comma step, we have~~ [[5/4]] ~~at the down major third (C–vE)~~, [[~~7/4~~]] ~~at the down minor seventh (C–vBb)~~, and [[11/8]] at the up augmented third (C–^E#)~~, [[tempering out]] [[540/539]], which makes it a member of [[swetismic temperaments]]~~.

The '''laka''' [[rank-3 temperament]] is one of the [[11-limit]] [[extension]]s of [[aberschismic]], inheriting the [[chain of fifths|chain-of-fifths-based]] structure and the generic comma step that results from equating the [[81/80|syntonic]] and [[64/63|septimal commas]]. It [[tempering out|tempers out]] [[540/539]], which makes it a member of [[swetismic temperaments]], and as a consequence, [[11/8]] is mapped to the comma-up augmented third (C–^E♯).

The canonical [[extension]] to the [[13-limit]] ~~finds~~ [[13/8]] at the up augmented fifth (C–^G#)~~, tempering out~~ [[352/351]], [[640/637]], [[729/728]] and [[847/845]], ~~and~~ a no-17 [[19-limit]] extension is available by recognizing [[19/16]] at the down augmented second (~~C–vD#~~), tempering out [[400/399]], [[456/455]] and [[495/494]]. The [[lattice]] structure is very comparable to that of [[pele]], but it is more complex as many of the simple divisive ratios are further away from the origin.

The canonical [[extension]] to the [[13-limit]] maps [[13/11]] to the diatonic minor third, which is the exact mean of [[6/5]] and [[7/6]], and implies [[13/8]] is the comma-up augmented fifth (C–^G♯) and that [[352/351]], [[640/637]], [[729/728]] and [[847/845]] are tempered out. Additionally, a no-17 [[19-limit]] extension is available by recognizing [[19/16]] at the comma-down augmented second (C–vD♯), tempering out [[400/399]], [[456/455]] and [[495/494]]. The [[lattice]] structure is very comparable to that of [[pele]], but it is more complex as many of the simple divisive ratios are further away from the origin.

See [[~~Hemifamity~~ family #Laka]] for technical ~~details~~.

See [[Aberschismic family #Laka]] for technical data.

== Interval lattice ==

@@ Line 10: / Line 10: @@
 | Odd limit 2 = 13-limit 21 | Mistuning 2 = 3.20 | Complexity 2 = ?
 }}
-'''Laka''' is a [[rank-3 temperament]] generated by a perfect fifth of [[~]][[3/2]] and a step for the [[81/80|syntonic]]~[[64/63|septimal comma]] to reach the interval classes of [[5/1|5]], [[7/1|7]], and higher [[prime harmonic|primes]]. Using an arrow to represent this comma step, we have [[5/4]] at the down major third (C–vE), [[7/4]] at the down minor seventh (C–vBb), and [[11/8]] at the up augmented third (C–^E#), [[tempering out]] [[540/539]], which makes it a member of [[swetismic temperaments]].
+The '''laka''' [[rank-3 temperament]] is one of the [[11-limit]] [[extension]]s of [[aberschismic]], inheriting the [[chain of fifths|chain-of-fifths-based]] structure and the generic comma step that results from equating the [[81/80|syntonic]] and [[64/63|septimal commas]]. It [[tempering out|tempers out]] [[540/539]], which makes it a member of [[swetismic temperaments]], and as a consequence, [[11/8]] is mapped to the comma-up augmented third (C–^E♯).
-The canonical [[extension]] to the [[13-limit]] finds [[13/8]] at the up augmented fifth (C–^G#), tempering out [[352/351]], [[640/637]], [[729/728]] and [[847/845]], and a no-17 [[19-limit]] extension is available by recognizing [[19/16]] at the down augmented second (C–vD#), tempering out [[400/399]], [[456/455]] and [[495/494]]. The [[lattice]] structure is very comparable to that of [[pele]], but it is more complex as many of the simple divisive ratios are further away from the origin.
+The canonical [[extension]] to the [[13-limit]] maps [[13/11]] to the diatonic minor third, which is the exact mean of [[6/5]] and [[7/6]], and implies [[13/8]] is the comma-up augmented fifth (C–^G♯) and that [[352/351]], [[640/637]], [[729/728]] and [[847/845]] are tempered out. Additionally, a no-17 [[19-limit]] extension is available by recognizing [[19/16]] at the comma-down augmented second (C–vD♯), tempering out [[400/399]], [[456/455]] and [[495/494]]. The [[lattice]] structure is very comparable to that of [[pele]], but it is more complex as many of the simple divisive ratios are further away from the origin.
-See [[Hemifamity family #Laka]] for technical details.
+See [[Aberschismic family #Laka]] for technical data.
 == Interval lattice ==