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| <h2>IMPORTED REVISION FROM WIKISPACES</h2>
| | A very easy way to construct a [[scale]] that's instantly recognizable, even without repeated listening/priming in the absence of listening the music in [[12EDO]], is to interpolate between [[harmonic series]]. |
| This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
| |
| : This revision was by author [[User:mikesheiman|mikesheiman]] and made on <tt>2016-05-20 15:30:58 UTC</tt>.<br>
| |
| : The original revision id was <tt>583698251</tt>.<br>
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| : The revision comment was: <tt></tt><br>
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| The revision contents are below, presented both in the original Wikispaces Wikitext format, and in HTML exactly as Wikispaces rendered it.<br>
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| <h4>Original Wikitext content:</h4>
| |
| <div style="width:100%; max-height:400pt; overflow:auto; background-color:#f8f9fa; border: 1px solid #eaecf0; padding:0em"><pre style="margin:0px;border:none;background:none;word-wrap:break-word;white-space: pre-wrap ! important" class="old-revision-html">=Easy Scales by Interpolating between Harmonic Series=
| |
|
| |
|
| A very easy way to construct a scale that's instantly recognizable, even without repeated listening/priming in the absence of listening the music in 12EDO, is to interpolate between harmonic series.
| | I'm using the notation <<harmonic series numbers from the root>> to denote what harmonic series certain scales contain. If this seems unclear or conflicts with an existing notation, please let me know. |
| | |
| | '''Some of the most prominent scales in existence can be very quickly derived from just a few interlocked/interpolated harmonic series.''' |
|
| |
|
| I'm using the notation <<harmonic series numbers from the root>> to denote what harmonic series certain scales contain. If this seems unclear or conflicts with an existing notation, please let me know.
| |
| **Some of the most prominent scales in existence can be very quickly derived from just a few interlocked/interpolated harmonic series.**
| |
| Take, for example, the diatonic major scale in 12EDO, where notes are approximately equal to | | Take, for example, the diatonic major scale in 12EDO, where notes are approximately equal to |
| __**C major diatonic in 12EDO <<8-9-12>> scale**__
| | |
| || C || D || E || F || G || A || B || | | {| class="wikitable" |
| || 1/1 || 9/8 or 10/9 || 5/4 || 4/3 || 3/2 || 5/3 || 15/8 or 17/9 ||
| | |- |
| | |+ C major diatonic in 12EDO <<8-9-12>> scale |
| | |- |
| | | C |
| | | D |
| | | E |
| | | F |
| | | G |
| | | A |
| | | B |
| | |- |
| | | 1/1 |
| | | 9/8 or 10/9 |
| | | 5/4 |
| | | 4/3 |
| | | 3/2 |
| | | 5/3 |
| | | 15/8 or 17/9 |
| | |} |
| This can be derived from the following harmonic series | | This can be derived from the following harmonic series |
|
| |
|
| **(x/9)** - 1/1, 10/9, 12/9 (4/3), 15/9 (5/3), 17/9
| | '''(x/9)''' - 1/1, 10/9, 12/9 (4/3), 15/9 (5/3), 17/9 |
| which is the same as the notes C D F A B and contains the **subdominant major chord F A C** | | |
| **(x/8)** - 1/1,9/8,10/8 (5/4), 12/8 (3/2), 15/8
| | which is the same as the notes C D F A B and contains the '''subdominant major chord F A C''' |
| which is the same as the notes C D E G B and contains the **tonic major chord C E G** along with the **dominant major chord G B D** | | |
| **(x/12) -** 1/1 5/4 4/3 3/2 5/3
| | '''(x/8)''' - 1/1,9/8,10/8 (5/4), 12/8 (3/2), 15/8 |
| | |
| | which is the same as the notes C D E G B and contains the '''tonic major chord C E G''' along with the '''dominant major chord G B D''' |
| | |
| | '''(x/12) -''' 1/1 5/4 4/3 3/2 5/3 |
| | |
| the same as the notes C E F G A. | | the same as the notes C E F G A. |
|
| |
|
| The **x/12 and x/9** harmonic series become particularly stressed in the **(Maqam) Rast**, also known as the **"Blues" scale**, of | | The '''x/12 and x/9''' harmonic series become particularly stressed in the '''([[Maqam]]) Rast''', also known as the '''"Blues" scale''', of |
| __**Maqam Rast <<9-12>> scale**__
| | |
| || C || D || D#-E || F || G || A || A#-B || | | {| class="wikitable" |
| || 1/1 || 9/8 or 10/9 || **11/9** || 4/3 || 3/2 || 5/3 or 27/16 || **11/6** ||
| | |- |
| | |+ Maqam Rast <<9-12>> scale |
| | |- |
| | | C |
| | | D |
| | | D#-E |
| | | F |
| | | G |
| | | A |
| | | A#-B |
| | |- |
| | | 1/1 |
| | | 9/8 or 10/9 |
| | | '''11/9''' |
| | | 4/3 |
| | | 3/2 |
| | | 5/3 or 27/16 |
| | | '''11/6''' |
| | |} |
| Here the x/9 series uses the "blue tone" of 11/9 and grows into | | Here the x/9 series uses the "blue tone" of 11/9 and grows into |
| **(x/9)** - 1/1 10/9 **11/9** 12/9 15/9 17/9
| | |
| | '''(x/9)''' - 1/1 10/9 '''11/9''' 12/9 15/9 17/9 |
| | |
| Meanwhile the addition of the "blue tone" of 11/6 and removal of 5/4 changes the x/12 series to | | Meanwhile the addition of the "blue tone" of 11/6 and removal of 5/4 changes the x/12 series to |
| **(x/12)** - 1/1 4/3 3/2 5/3 **11/6**
| | |
| | '''(x/12)''' - 1/1 4/3 3/2 5/3 '''11/6''' |
| | |
| And the removal of the 5/4 and 15/8 shrinks the x/8 series into | | And the removal of the 5/4 and 15/8 shrinks the x/8 series into |
| **(x/8) -** 1/1 9/8 3/2
| | |
| | '''(x/8) -''' 1/1 9/8 3/2 |
|
| |
|
| If you don't like the small/compromised x/8 series, you can modify that scale by deleting the 11/9 and adding back the 5/4 and removing the 11/9 to make the scale more balanced between the size of the different series e.g. | | If you don't like the small/compromised x/8 series, you can modify that scale by deleting the 11/9 and adding back the 5/4 and removing the 11/9 to make the scale more balanced between the size of the different series e.g. |
| | |
| (x/8) - 1/1 9/8 5/4 3/2 | | (x/8) - 1/1 9/8 5/4 3/2 |
| | |
| and | | and |
| | |
| (x/9) - 1/1 10/9 4/3 5/3 17/9 | | (x/9) - 1/1 10/9 4/3 5/3 17/9 |
| **But why limit yourself to/by x/8, x/9, and x/12 harmonic extensions of the root?**
| | |
| ---- | | '''But why limit yourself to/by x/8, x/9, and x/12 harmonic extensions of the root?''' |
| **Part 2- Attempting to create scales from scratch given harmonic series segments from a root tone**
| | |
| | ----- |
| | '''Part 2- Attempting to create scales from scratch given harmonic series segments from a root tone''' |
|
| |
|
| A common pattern in the above scales is use of and interpolation between the x/9 and x/12 harmonic series | | A common pattern in the above scales is use of and interpolation between the x/9 and x/12 harmonic series |
| | |
| It turns out the x/7 harmonic series has many notes in common with or close to the x/8, x/9, and x/12 harmonic series. | | It turns out the x/7 harmonic series has many notes in common with or close to the x/8, x/9, and x/12 harmonic series. |
| | |
| We can take advantage of this to construct a more advanced scale in order the create the series | | We can take advantage of this to construct a more advanced scale in order the create the series |
| **(x/7)** = 7:9:11:12:13 (AKA 1/1 9/7 11/7 12/7 13/7)
| | |
| **(x/8)** = 8:9:10:12:14:15
| | '''(x/7)''' = 7:9:11:12:13 (AKA 1/1 9/7 11/7 12/7 13/7) |
| **(x/9)** = 9:10:12:14:15
| | |
| **(x/12)** = 12:15:16:18:20
| | '''(x/8)''' = 8:9:10:12:14:15 |
| | |
| | '''(x/9)''' = 9:10:12:14:15 |
| | |
| | '''(x/12)''' = 12:15:16:18:20 |
| | |
| Some of these ratios are near each other, but not equal, such as 9/8 in the (x/8) and 10/9 in the (x/9) series or 14/9 in the (x/9) series and 11/7 in the x/7 series. | | Some of these ratios are near each other, but not equal, such as 9/8 in the (x/8) and 10/9 in the (x/9) series or 14/9 in the (x/9) series and 11/7 in the x/7 series. |
| | |
| One way to evenly distribute error is to take the harmonic/geometric median between such fractions e.g. square-root-of ((11/7)/(14/9)) * 14/9 = about 1.56. | | One way to evenly distribute error is to take the harmonic/geometric median between such fractions e.g. square-root-of ((11/7)/(14/9)) * 14/9 = about 1.56. |
| | |
| Doing such gives us the scale | | Doing such gives us the scale |
| __**10 note <<7-8-9-12>> "extended color diatonic" Harmonic Segment Scale**__
| |
| || 1/1 || 11181/10000 || 5/4 || 9/7 || 4/3 || 3/2 || 156341/100000 || 5/3 || 26/15 || 28/15 ||
| |
| || || between 10/9 and 9/8 || || || || || between 14/9 and 11/7 || || between 12/7 and 7/4 || between 13/7 and 15/8 ||
| |
|
| |
|
| In addition, adding 16/15 to the above scale can yield an additional 5 note harmonic series, making the above a **larger <<7-8-9-12-15>> scale** | | {| class="wikitable" |
| **(x/15)** = 15:16:20:26:28
| | |- |
| | |+ 10 note <<7-8-9-12>> "extended color diatonic" Harmonic Segment Scale |
| | |- |
| | | 1/1 |
| | | 11181/10000 |
| | | 5/4 |
| | | 9/7 |
| | | 4/3 |
| | | 3/2 |
| | | 156341/100000 |
| | | 5/3 |
| | | 26/15 |
| | | 28/15 |
| | |- |
| | | |
| | | between 10/9 and 9/8 |
| | | |
| | | |
| | | |
| | | |
| | | between 14/9 and 11/7 |
| | | |
| | | between 12/7 and 7/4 |
| | | between 13/7 and 15/8 |
| | |} |
| | |
| | In addition, adding 16/15 to the above scale can yield an additional 5 note harmonic series, making the above a '''larger <<7-8-9-12-15>> scale''' |
|
| |
|
| Feel free to add comments or find/punch loopholes in this theory, but this is what I'd consider an idea **"extended diatonic"** scale in that it stresses likely the most important harmonic series in the diatonic scale while adding an extra (x/7) into the mix, giving the scale a wider range of tonal color.
| | '''(x/15)''' = 15:16:20:26:28 |
| **More scales to come later...**
| |
| ----
| |
| **Appendix-**
| |
| Above calculations such as the interpolation of (11/7)/(14/9) can also be expressed as commas e.g. 99/98, which can be plugged into Graham Breed's Temperament Finder on [[http://x31eq.com/temper/uv.html]] to reveal temperaments and ultimately scales likely to contain the above harmonic series segments.
| |
| . However, most of the more advanced scales on my method would require tempering out several different commas and, presumably, also countless related commas indirectly. I am afraid this would often result in huge and much more challenging to play in (think: well over 15 notes) scales needed to contain, say, the x/7,x/8,x/9,and x/12 harmonic series from the root tone with reasonable accuracy in regular temperament theory.
| |
|
| |
|
| If any **experts on Xenharmonic math**, including related lists, can find a way to related the input of harmonic series segments to, say, MOS scales guaranteed to have them I would really appreciate it.</pre></div>
| | And adding 6/5,8/5, and 9/5 gives |
| <h4>Original HTML content:</h4>
| |
| <div style="width:100%; max-height:400pt; overflow:auto; background-color:#f8f9fa; border: 1px solid #eaecf0; padding:0em"><pre style="margin:0px;border:none;background:none;word-wrap:break-word;width:200%;white-space: pre-wrap ! important" class="old-revision-html"><html><head><title>Easy Scales by Interpolating between Harmonic Series</title></head><body><!-- ws:start:WikiTextHeadingRule:0:&lt;h1&gt; --><h1 id="toc0"><a name="Easy Scales by Interpolating between Harmonic Series"></a><!-- ws:end:WikiTextHeadingRule:0 -->Easy Scales by Interpolating between Harmonic Series</h1>
| |
| <br />
| |
| A very easy way to construct a scale that's instantly recognizable, even without repeated listening/priming in the absence of listening the music in 12EDO, is to interpolate between harmonic series.<br />
| |
| <br />
| |
| I'm using the notation &lt;&lt;harmonic series numbers from the root&gt;&gt; to denote what harmonic series certain scales contain. If this seems unclear or conflicts with an existing notation, please let me know.<br />
| |
| <strong>Some of the most prominent scales in existence can be very quickly derived from just a few interlocked/interpolated harmonic series.</strong><br />
| |
| Take, for example, the diatonic major scale in 12EDO, where notes are approximately equal to<br />
| |
| <u><strong>C major diatonic in 12EDO &lt;&lt;8-9-12&gt;&gt; scale</strong></u><br />
| |
|
| |
|
| | '''<<7-8-9-10-12-15>> scale''' |
|
| |
|
| <table class="wiki_table">
| | '''(x/10)''' = 10:12:15:16:18 |
| <tr>
| |
| <td>C<br />
| |
| </td>
| |
| <td>D<br />
| |
| </td>
| |
| <td>E<br />
| |
| </td>
| |
| <td>F<br />
| |
| </td>
| |
| <td>G<br />
| |
| </td>
| |
| <td>A<br />
| |
| </td>
| |
| <td>B<br />
| |
| </td>
| |
| </tr>
| |
| <tr>
| |
| <td>1/1<br />
| |
| </td>
| |
| <td>9/8 or 10/9<br />
| |
| </td>
| |
| <td>5/4<br />
| |
| </td>
| |
| <td>4/3<br />
| |
| </td>
| |
| <td>3/2<br />
| |
| </td>
| |
| <td>5/3<br />
| |
| </td>
| |
| <td>15/8 or 17/9<br />
| |
| </td>
| |
| </tr>
| |
| </table>
| |
|
| |
|
| This can be derived from the following harmonic series<br />
| | Feel free to add comments or find/punch loopholes in this theory, but this is what I'd consider an idea '''"extended [[diatonic]]"''' scale in that it stresses likely the most important harmonic series in the diatonic scale while adding an extra (x/7) into the mix, giving the scale a wider range of tonal color. |
| <br />
| |
| <strong>(x/9)</strong> - 1/1, 10/9, 12/9 (4/3), 15/9 (5/3), 17/9<br />
| |
| which is the same as the notes C D F A B and contains the <strong>subdominant major chord F A C</strong><br />
| |
| <strong>(x/8)</strong> - 1/1,9/8,10/8 (5/4), 12/8 (3/2), 15/8<br />
| |
| which is the same as the notes C D E G B and contains the <strong>tonic major chord C E G</strong> along with the <strong>dominant major chord G B D</strong><br />
| |
| <strong>(x/12) -</strong> 1/1 5/4 4/3 3/2 5/3<br />
| |
| the same as the notes C E F G A.<br /> | |
| <br />
| |
| The <strong>x/12 and x/9</strong> harmonic series become particularly stressed in the <strong>(Maqam) Rast</strong>, also known as the <strong>&quot;Blues&quot; scale</strong>, of<br />
| |
| <u><strong>Maqam Rast &lt;&lt;9-12&gt;&gt; scale</strong></u><br />
| |
|
| |
|
| | '''More scales to come later...''' |
|
| |
|
| <table class="wiki_table">
| | ----- |
| <tr>
| | '''Appendix''' |
| <td>C<br />
| |
| </td>
| |
| <td>D<br />
| |
| </td>
| |
| <td>D#-E<br />
| |
| </td>
| |
| <td>F<br />
| |
| </td>
| |
| <td>G<br />
| |
| </td>
| |
| <td>A<br />
| |
| </td>
| |
| <td>A#-B<br />
| |
| </td>
| |
| </tr>
| |
| <tr>
| |
| <td>1/1<br />
| |
| </td>
| |
| <td>9/8 or 10/9<br />
| |
| </td>
| |
| <td><strong>11/9</strong><br />
| |
| </td>
| |
| <td>4/3<br />
| |
| </td>
| |
| <td>3/2<br />
| |
| </td>
| |
| <td>5/3 or 27/16<br />
| |
| </td>
| |
| <td><strong>11/6</strong><br />
| |
| </td>
| |
| </tr>
| |
| </table>
| |
|
| |
|
| Here the x/9 series uses the &quot;blue tone&quot; of 11/9 and grows into<br />
| | Above calculations such as the interpolation of (11/7)/(14/9) can also be expressed as commas e.g. 99/98, which can be plugged into [[Graham Breed]]'s Temperament Finder on [http://x31eq.com/temper/uv.html http://x31eq.com/temper/uv.html] to reveal temperaments and ultimately scales likely to contain the above harmonic series segments. |
| <strong>(x/9)</strong> - 1/1 10/9 <strong>11/9</strong> 12/9 15/9 17/9<br />
| |
| Meanwhile the addition of the &quot;blue tone&quot; of 11/6 and removal of 5/4 changes the x/12 series to<br />
| |
| <strong>(x/12)</strong> - 1/1 4/3 3/2 5/3 <strong>11/6</strong><br />
| |
| And the removal of the 5/4 and 15/8 shrinks the x/8 series into<br />
| |
| <strong>(x/8) -</strong> 1/1 9/8 3/2<br />
| |
| <br />
| |
| If you don't like the small/compromised x/8 series, you can modify that scale by deleting the 11/9 and adding back the 5/4 and removing the 11/9 to make the scale more balanced between the size of the different series e.g.<br />
| |
| (x/8) - 1/1 9/8 5/4 3/2<br />
| |
| and<br />
| |
| (x/9) - 1/1 10/9 4/3 5/3 17/9<br />
| |
| <strong>But why limit yourself to/by x/8, x/9, and x/12 harmonic extensions of the root?</strong><br />
| |
| <hr />
| |
| <strong>Part 2- Attempting to create scales from scratch given harmonic series segments from a root tone</strong><br />
| |
| <br />
| |
| A common pattern in the above scales is use of and interpolation between the x/9 and x/12 harmonic series<br />
| |
| It turns out the x/7 harmonic series has many notes in common with or close to the x/8, x/9, and x/12 harmonic series.<br />
| |
| We can take advantage of this to construct a more advanced scale in order the create the series<br />
| |
| <strong>(x/7)</strong> = 7:9:11:12:13 (AKA 1/1 9/7 11/7 12/7 13/7)<br />
| |
| <strong>(x/8)</strong> = 8:9:10:12:14:15<br />
| |
| <strong>(x/9)</strong> = 9:10:12:14:15<br />
| |
| <strong>(x/12)</strong> = 12:15:16:18:20<br />
| |
| Some of these ratios are near each other, but not equal, such as 9/8 in the (x/8) and 10/9 in the (x/9) series or 14/9 in the (x/9) series and 11/7 in the x/7 series.<br />
| |
| One way to evenly distribute error is to take the harmonic/geometric median between such fractions e.g. square-root-of ((11/7)/(14/9)) * 14/9 = about 1.56.<br />
| |
| Doing such gives us the scale<br />
| |
| <u><strong>10 note &lt;&lt;7-8-9-12&gt;&gt; &quot;extended color diatonic&quot; Harmonic Segment Scale</strong></u><br />
| |
|
| |
|
| | . However, most of the more advanced scales on my method would require tempering out several different [[comma]]s and, presumably, also countless related commas indirectly. I am afraid this would often result in huge and much more challenging to play in (think: well over 15 notes) scales needed to contain, say, the x/7,x/8,x/9,and x/12 harmonic series from the root tone with reasonable accuracy in [[regular temperament theory]]. |
|
| |
|
| <table class="wiki_table">
| | If any '''experts on Xenharmonic math''', including related lists, can find a way to related the input of harmonic series segments to, say, [[MOS scale]]s guaranteed to have them I would really appreciate it. |
| <tr>
| |
| <td>1/1<br />
| |
| </td>
| |
| <td>11181/10000<br />
| |
| </td>
| |
| <td>5/4<br />
| |
| </td>
| |
| <td>9/7<br />
| |
| </td>
| |
| <td>4/3<br />
| |
| </td>
| |
| <td>3/2<br />
| |
| </td>
| |
| <td>156341/100000<br />
| |
| </td>
| |
| <td>5/3<br />
| |
| </td>
| |
| <td>26/15<br />
| |
| </td>
| |
| <td>28/15<br />
| |
| </td>
| |
| </tr>
| |
| <tr>
| |
| <td><br />
| |
| </td>
| |
| <td>between 10/9 and 9/8<br />
| |
| </td>
| |
| <td><br />
| |
| </td>
| |
| <td><br />
| |
| </td>
| |
| <td><br />
| |
| </td>
| |
| <td><br />
| |
| </td>
| |
| <td>between 14/9 and 11/7<br />
| |
| </td>
| |
| <td><br />
| |
| </td>
| |
| <td>between 12/7 and 7/4<br />
| |
| </td>
| |
| <td>between 13/7 and 15/8<br />
| |
| </td>
| |
| </tr>
| |
| </table>
| |
|
| |
|
| <br />
| | [[Category:Scale]] |
| In addition, adding 16/15 to the above scale can yield an additional 5 note harmonic series, making the above a <strong>larger &lt;&lt;7-8-9-12-15&gt;&gt; scale</strong><br />
| | [[Category:Guides]] |
| <strong>(x/15)</strong> = 15:16:20:26:28<br />
| | {{todo|cleanup}} |
| <br />
| |
| Feel free to add comments or find/punch loopholes in this theory, but this is what I'd consider an idea <strong>&quot;extended diatonic&quot;</strong> scale in that it stresses likely the most important harmonic series in the diatonic scale while adding an extra (x/7) into the mix, giving the scale a wider range of tonal color.<br />
| |
| <strong>More scales to come later...</strong><br />
| |
| <hr />
| |
| <strong>Appendix-</strong><br />
| |
| Above calculations such as the interpolation of (11/7)/(14/9) can also be expressed as commas e.g. 99/98, which can be plugged into Graham Breed's Temperament Finder on <a class="wiki_link_ext" href="http://x31eq.com/temper/uv.html" rel="nofollow">http://x31eq.com/temper/uv.html</a> to reveal temperaments and ultimately scales likely to contain the above harmonic series segments.<br />
| |
| . However, most of the more advanced scales on my method would require tempering out several different commas and, presumably, also countless related commas indirectly. I am afraid this would often result in huge and much more challenging to play in (think: well over 15 notes) scales needed to contain, say, the x/7,x/8,x/9,and x/12 harmonic series from the root tone with reasonable accuracy in regular temperament theory.<br />
| |
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| If any <strong>experts on Xenharmonic math</strong>, including related lists, can find a way to related the input of harmonic series segments to, say, MOS scales guaranteed to have them I would really appreciate it.</body></html></pre></div>
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