Harmonic entropy of just intervals: Difference between revisions
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This is a procedurally generated table of several hundred [[just intonation]] intervals between [[1/1]] and [[16/1]]: roughly evenly spaced with about one interval every | This is a procedurally generated table of several hundred [[just intonation]] intervals between [[1/1]] and [[16/1]]: roughly evenly spaced with about one interval every 4–5 [[cents]]. | ||
The table shows how wide each interval is in cents, as well as showing its [[harmonic entropy]]. | The table shows how wide each interval is in cents, as well as showing its [[harmonic entropy]]. | ||
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== Methodology == | == Methodology == | ||
This table was made with [[Scale Workshop]]. It was made by starting with 1080ed16 ([[270edo]] but treating 16/1 as the [[period]]), then using "convert interval values | This table was made with [[Scale Workshop]]. It was made by starting with 1080ed16 ([[270edo]] but treating 16/1 as the [[period]]), then using "convert interval values > fraction" with a tolerance of 4.4{{c}} to convert all the intervals into the nearest simple just interval (according to Scale Workshop's default settings). | ||
Then Scale Workshop's built-in harmonic entropy table was used to get the cents and the harmonic entropy, with all parameters left as default for the column "%, Rényi order 1.0", and all set to default except Réyni order for the column "%, Rényi order 7.0" (which was as the name suggests). | Then Scale Workshop's built-in harmonic entropy table was used to get the cents and the harmonic entropy, with all parameters left as default for the column "%, Rényi order 1.0", and all set to default except Réyni order for the column "%, Rényi order 7.0" (which was as the name suggests). | ||
== Table of intervals == | == Table of intervals == | ||
=== 1/1 to 2/1 === | === 1/1 to 2/1 === | ||
{| class="wikitable mw-collapsible sortable" | {| class="wikitable mw-collapsible sortable" | ||
|+ style="font-size: 105%;" | Harmonic entropy of just intervals size 0 to | |+ style="font-size: 105%;" | Harmonic entropy of just intervals size 0 to 1200{{c}} | ||
|- | |- | ||
! Just interval !! Size (cents) !! Entropy (Réyni 1.0) !! Entropy (Réyni 7.0) | ! Just interval !! Size (cents) !! Entropy (Réyni 1.0) !! Entropy (Réyni 7.0) | ||
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=== 2/1 to 4/1 === | === 2/1 to 4/1 === | ||
{| class="wikitable mw-collapsible sortable" | {| class="wikitable mw-collapsible sortable" | ||
|+ style="font-size: 105%;" | Harmonic entropy of just intervals size 1200 to | |+ style="font-size: 105%;" | Harmonic entropy of just intervals size 1200 to 2400{{c}} | ||
|- | |- | ||
! Just interval !! Size (cents) !! Entropy (Réyni 1.0) !! Entropy (Réyni 7.0) | ! Just interval !! Size (cents) !! Entropy (Réyni 1.0) !! Entropy (Réyni 7.0) | ||
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=== 4/1 to 8/1 === | === 4/1 to 8/1 === | ||
{| class="wikitable mw-collapsible sortable" | {| class="wikitable mw-collapsible sortable" | ||
|+ style="font-size: 105%;" | Harmonic entropy of just intervals size 2400 to | |+ style="font-size: 105%;" | Harmonic entropy of just intervals size 2400 to 3600{{c}} | ||
|- | |- | ||
! Just interval !! Size (cents) !! Entropy (Réyni 1.0) !! Entropy (Réyni 7.0) | ! Just interval !! Size (cents) !! Entropy (Réyni 1.0) !! Entropy (Réyni 7.0) | ||
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=== 8/1 to 16/1 === | === 8/1 to 16/1 === | ||
{| class="wikitable mw-collapsible sortable" | {| class="wikitable mw-collapsible sortable" | ||
|+ style="font-size: 105%;" | Harmonic entropy of just intervals size 3600 to | |+ style="font-size: 105%;" | Harmonic entropy of just intervals size 3600 to 4800{{c}} | ||
|- | |- | ||
! Just interval !! Size (cents) !! Entropy (Réyni 1.0) !! Entropy (Réyni 7.0) | ! Just interval !! Size (cents) !! Entropy (Réyni 1.0) !! Entropy (Réyni 7.0) | ||