Elf: Difference between revisions
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An '''elf''' is a scale in a [[regular temperament]] which is tempered from a [[just intonation]] (JI) scale in the group of the temperament which is a one-to-one [[detempering]] of ''n''-edo via a val ''V'' which may not | An '''elf''' is a scale in a [[regular temperament]] which is tempered from a [[just intonation]] (JI) scale in the group of the temperament which is a one-to-one [[detempering]] of ''n''-edo via a [[val]] ''V'' which may not, and characteristically does not, support the temperament. This allows the elf to have more freedom in scale size and structure but still to possess the coherence induced by the one-to-one detempering. | ||
To construct an elf, the following steps are used: | To construct an elf given an ''n''-edo val ''V'' and a temperament, the following steps are used: | ||
# Take all intervals in the JI group of the temperament which lie within an octave. | # Take all intervals in the JI group of the temperament which lie within an octave. | ||
# For each interval of | # For each interval of the temperament, keep only the least complex (in terms of [[Benedetti height]]) JI interpretation of that interval. | ||
# Construct a detempering of ''n''-edo as follows: For each integer value {{nowrap|1 ≤ ''i'' ≤ ''n''}}, select the ''i''th degree of the scale from the JI preimage of ''i''\''n'' under ''V'' to be the least temperamentally-complex interval (with ties broken by Benedetti height) among the JI intervals that remain after step 2. | |||
# Construct a detempering of n-edo as follows: For each integer value 1 | # Temper this detempering of ''n''-edo using a [[tuning map]] for the temperament. This step is done so that it becomes a scale of the given temperament. The result is an elf. | ||
# Temper this detempering of n-edo using a [[tuning map]] for the temperament. | |||
The result is an elf. | |||
== Rank two examples == | == Rank two examples == | ||
=== 13-limit leapday === | === 13-limit leapday === | ||
* [[ | * [[elfleapday7]] | ||
* [[ | * [[elfleapday8d]] | ||
* [[ | * [[elfleapday9]] | ||
* [[ | * [[elfleapday10]] | ||
* [[ | * [[elfleapday12f]] | ||
=== 11-limit magic === | === 11-limit magic === | ||
* [[ | * [[elfmagic7]] | ||
* [[ | * [[elfmagic8]] | ||
* [[ | * [[elfmagic8d]] | ||
* [[ | * [[elfmagic9]] | ||
* [[ | * [[elfmagic10]] | ||
* [[ | * [[elfmagic12]] | ||
=== 11-limit miracle === | === 11-limit miracle === | ||
* [[ | * [[elfmiracle7]] | ||
* [[ | * [[elfmiracle8d]] | ||
* [[ | * [[elfmiracle9]] | ||
* [[ | * [[elfmiracle10]] | ||
* [[ | * [[elfmiracle12]] | ||
=== 13-limit myna === | === 13-limit myna === | ||
* [[ | * [[elfmyna7]] | ||
* [[ | * [[elfmyna8d]] | ||
* [[ | * [[elfmyna9]] | ||
* [[ | * [[elfmyna10]] | ||
* [[ | * [[elfmyna12f]] | ||
=== 13-limit octacot === | === 13-limit octacot === | ||
* [[ | * [[elfoctacot7]] | ||
* [[ | * [[elfoctacot8d]] | ||
* [[ | * [[elfoctacot9]] | ||
* [[ | * [[elfoctacot10]] | ||
* [[ | * [[elfoctacot12f]] | ||
=== 13-limit qilin === | === 13-limit qilin === | ||
* [[ | * [[elfqilin7]] | ||
* [[ | * [[elfqilin8d]] | ||
* [[ | * [[elfqilin9]] | ||
* [[ | * [[elfqilin10]] | ||
* [[ | * [[elfqilin12f]] | ||
=== 13-limit sensus === | === 13-limit sensus === | ||
* [[ | * [[elfsensus7]] | ||
* [[ | * [[elfsensus8d]] | ||
* [[ | * [[elfsensus9]] | ||
* [[ | * [[elfsensus10]] | ||
* [[ | * [[elfsensus12]] | ||
* [[ | * [[elfsensus12f]] | ||
=== 11-limit valentine === | === 11-limit valentine === | ||
* [[ | * [[elfvalentine7]] | ||
* [[ | * [[elfvalentine8d]] | ||
* [[ | * [[elfvalentine9]] | ||
* [[ | * [[elfvalentine10]] | ||
* [[ | * [[elfvalentine12]] | ||
== Rank three examples == | == Rank three examples == | ||
=== 11-limit jove === | === 11-limit jove === | ||
* [[ | * [[elfjove7]] | ||
* [[ | * [[elfjove8d]] | ||
* [[ | * [[elfjove9]] | ||
* [[ | * [[elfjove10]] | ||
* [[ | * [[elfjove11c]] | ||
* [[ | * [[elfjove12]] | ||
=== 13-limit madagascar === | === 13-limit madagascar === | ||
* [[ | * [[elfmadagascar7]] | ||
* [[ | * [[elfmadagascar8d]] | ||
* [[ | * [[elfmadagascar9]] | ||
* [[ | * [[elfmadagascar10]] | ||
* [[ | * [[elfmadagascar12f]] | ||
* [[ | * [[elfmadagascar14c]] | ||
* [[ | * [[elfmadagascar15]] | ||
=== 11-limit portent === | === 11-limit portent === | ||
* [[ | * [[elfportent9]] | ||
* [[ | * [[elfportent10]] | ||
* [[ | * [[elfportent11c]] | ||
* [[ | * [[elfportent12]] | ||
* [[ | * [[elfportent15]] | ||
=== 11-limit thrush === | === 11-limit thrush === | ||
* [[ | * [[elfthrush7]] | ||
* [[ | * [[elfthrush8d]] | ||
* [[ | * [[elfthrush9]] | ||
* [[ | * [[elfthrush10]] | ||
* [[ | * [[elfthrush12]] | ||
=== 11-limit zeus === | === 11-limit zeus === | ||
* [[ | * [[zeus7tri]] | ||
* [[ | * [[elfzeus8]] | ||
* [[ | * [[elfzeus9]] | ||
* [[ | * [[elfzeus10]] | ||
* [[ | * [[elfzeus12]] | ||
== Rank four examples == | == Rank four examples == | ||
=== Keenanismic === | === Keenanismic === | ||
* [[ | * [[elfkeenanismic7]] | ||
* [[ | * [[elfkeenanismic8d]] | ||
* [[ | * [[elfkeenanismic9]] | ||
* [[ | * [[elfkeenanismic10]] | ||
* [[ | * [[elfkeenanismic11c]] | ||
* [[ | * [[elfkeenanismic12]] | ||
* [[ | * [[elfkeenanismic19]] | ||
=== Swetismic === | === Swetismic === | ||
* [[ | * [[elfswetismic8d]] | ||
* [[ | * [[elfswetismic9]] | ||
* [[ | * [[elfswetismic10]] | ||
* [[ | * [[elfswetismic12]] | ||
=== Valinorsmic === | === Valinorsmic === | ||
* [[ | * [[elfvalinorsmic7]] | ||
* [[ | * [[elfvalinorsmic8d]] | ||
* [[ | * [[elfvalinorsmic9]] | ||
* [[ | * [[elfvalinorsmic10]] | ||
* [[ | * [[elfvalinorsmic11c]] | ||
* [[ | * [[elfvalinorsmic12]] | ||
[[Category:Elves | [[Category:Elves]] <!-- main article --> | ||