|
|
(41 intermediate revisions by 17 users not shown) |
Line 1: |
Line 1: |
| <h2>IMPORTED REVISION FROM WIKISPACES</h2>
| | {{Infobox Interval |
| This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
| | | Name = Pythagorean whole tone, Pythagorean major second |
| : This revision was by author [[User:spt3125|spt3125]] and made on <tt>2014-06-07 16:44:59 UTC</tt>.<br>
| | | Color name = w2, wa 2nd |
| : The original revision id was <tt>513197596</tt>.<br>
| | | Sound = jid_9_8_pluck_adu_dr220.mp3 |
| : The revision comment was: <tt></tt><br>
| | | Comma = yes |
| The revision contents are below, presented both in the original Wikispaces Wikitext format, and in HTML exactly as Wikispaces rendered it.<br>
| | }} |
| <h4>Original Wikitext content:</h4>
| | {{Wikipedia|Major second}} |
| <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">**9/8**
| |
| |-3 2> | |
| 203.91000 cents
| |
| [[media type="file" key="jid_9_8_pluck_adu_dr220.mp3" width="240" height="20"]] [[file:xenharmonic/jid_9_8_pluck_adu_dr220.mp3|sound sample]]
| |
|
| |
|
| 9/8 is the Pythagorean whole tone, measuring approximately 203.9¢. It can be arrived at by stacking two just perfect fifths ([[3_2|3/2]]) and reducing the result by one octave. However, it is also a relatively low overtone in its own right, octave-reduced. It can be treated as a dissonance or a consonance, depending on compositional context. | | '''9/8''', the '''Pythagorean whole tone''' or '''major second''', is an interval measuring approximately 203.9¢. It can be arrived at by stacking two just perfect fifths ([[3/2]]) and reducing the result by one octave. However, it is also a relatively low overtone in its own right, octave-reduced. It can be treated as a dissonance or a consonance, depending on compositional context, though because of its relatively close proximity to the [[unison]], it is the largest [[superparticular]] interval known to cause crowding, which lends more to it being considered a type of dissonance- at least in historical Western Classical traditions and in the xenharmonic traditions derived from them. |
|
| |
|
| Two 9/8's stacked produce [[81_64|81/64]], the Pythagorean major third, a rather bright major third of approximately 407.8¢. However, a 9/8 plus the minor whole tone [[10_9|10/9]] yields [[5_4|5/4]]. This distinction, between a major whole tone and minor whole tone, has been completely obliterated in [[12edo]], and so we are unaccustomed to thinking of more than one size of whole tone comprising a major third. Other systems which temper out this difference (which is [[81_80|81/80]], the syntonic comma of about 21.5¢) include [[19edo]], [[26edo]], [[31edo]], and all [[meantone]] temperaments. | | Two 9/8's stacked produce [[81/64]], the Pythagorean major third, a rather bright major third of approximately 407.8¢. However, a 9/8 plus the minor whole tone [[10/9]] yields [[5/4]]. This distinction, between a major whole tone and minor whole tone, has been completely obliterated in [[12edo]], and so we are unaccustomed to thinking of more than one size of whole tone comprising a major third. Other systems that temper out this difference (which is [[81/80]], the syntonic comma of about 21.5¢), such as [[19edo]], [[26edo]], and [[31edo]], are called [[meantone]] temperaments. |
|
| |
|
| 9/8 is well-represented in [[6edo]] and its multiples. [[Edo]]s which tune [[3_2]] close to just ([[29edo]], [[41edo]], [[53edo]], to name three) will tune 9/8 close as well. | | 9/8 is well-represented in [[6edo]] and its multiples. [[Edo]]s which tune [[3/2]] close to just ([[29edo]], [[41edo]], [[53edo]], to name three) will tune 9/8 close to just as well. The difference between six instances of 9/8 and the octave is the [[Pythagorean comma]]. |
|
| |
|
| See: [[Gallery of Just Intervals]]</pre></div>
| | == History == |
| <h4>Original HTML content:</h4>
| | The (whole) tone as an interval measure was already known in Ancient Greece. {{w|Aristoxenus}} (fl. 335 BC) defined the tone as the difference between the [[3/2|just fifth (3/2)]] and the [[4/3|just fourth (4/3)]]. From this base size, he derived the size of other intervals as multiples or fractions of the tone, so for instance the just fourth was 2½ tones in size, which implies [[12edo]]. |
| <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>9_8</title></head><body><strong>9/8</strong><br />
| | |
| |-3 2&gt;<br />
| | == Temperaments == |
| 203.91000 cents<br />
| | When this ratio is taken as a comma to be [[tempering out|tempered out]], it produces [[Very low accuracy temperaments #Antitonic|antitonic]] temperament. Edos that temper it out include [[2edo]] and [[4edo]]. If it is instead used as a generator, it produces, among others, [[Subgroup temperaments #Baldy|baldy]]. |
| <!-- ws:start:WikiTextMediaRule:0:&lt;img src=&quot;http://www.wikispaces.com/site/embedthumbnail/file-audio/jid_9_8_pluck_adu_dr220.mp3?h=20&amp;w=240&quot; class=&quot;WikiMedia WikiMediaFile&quot; id=&quot;wikitext@@media@@type=&amp;quot;file&amp;quot; key=&amp;quot;jid_9_8_pluck_adu_dr220.mp3&amp;quot; width=&amp;quot;240&amp;quot; height=&amp;quot;20&amp;quot;&quot; title=&quot;Local Media File&quot;height=&quot;20&quot; width=&quot;240&quot;/&gt; --><embed src="/s/mediaplayer.swf" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" quality="high" width="240" height="20" wmode="transparent" flashvars="file=http%253A%252F%252Fxenharmonic.wikispaces.com%252Ffile%252Fview%252Fjid_9_8_pluck_adu_dr220.mp3?file_extension=mp3&autostart=false&repeat=false&showdigits=true&showfsbutton=false&width=240&height=20"></embed><!-- ws:end:WikiTextMediaRule:0 --> <a href="http://xenharmonic.wikispaces.com/file/view/jid_9_8_pluck_adu_dr220.mp3/513184610/jid_9_8_pluck_adu_dr220.mp3" onclick="ws.common.trackFileLink('http://xenharmonic.wikispaces.com/file/view/jid_9_8_pluck_adu_dr220.mp3/513184610/jid_9_8_pluck_adu_dr220.mp3');">sound sample</a><br />
| | |
| <br />
| | == Notation == |
| 9/8 is the Pythagorean whole tone, measuring approximately 203.9¢. It can be arrived at by stacking two just perfect fifths (<a class="wiki_link" href="/3_2">3/2</a>) and reducing the result by one octave. However, it is also a relatively low overtone in its own right, octave-reduced. It can be treated as a dissonance or a consonance, depending on compositional context.<br />
| | In musical notations that employ the [[5L 2s|diatonic]] [[chain-of-fifths notation|chain-of-fifths]], such as the [[ups and downs notation]], the whole tone is represented by the distances between A and B, between C and D, between D and E, between F and G, as well as between G and A. |
| <br />
| | |
| Two 9/8's stacked produce <a class="wiki_link" href="/81_64">81/64</a>, the Pythagorean major third, a rather bright major third of approximately 407.8¢. However, a 9/8 plus the minor whole tone <a class="wiki_link" href="/10_9">10/9</a> yields <a class="wiki_link" href="/5_4">5/4</a>. This distinction, between a major whole tone and minor whole tone, has been completely obliterated in <a class="wiki_link" href="/12edo">12edo</a>, and so we are unaccustomed to thinking of more than one size of whole tone comprising a major third. Other systems which temper out this difference (which is <a class="wiki_link" href="/81_80">81/80</a>, the syntonic comma of about 21.5¢) include <a class="wiki_link" href="/19edo">19edo</a>, <a class="wiki_link" href="/26edo">26edo</a>, <a class="wiki_link" href="/31edo">31edo</a>, and all <a class="wiki_link" href="/meantone">meantone</a> temperaments.<br />
| | The scale is structured with the following step pattern: |
| <br />
| | * A to B: [[9/8|whole tone]] |
| 9/8 is well-represented in <a class="wiki_link" href="/6edo">6edo</a> and its multiples. <a class="wiki_link" href="/Edo">Edo</a>s which tune <a class="wiki_link" href="/3_2">3_2</a> close to just (<a class="wiki_link" href="/29edo">29edo</a>, <a class="wiki_link" href="/41edo">41edo</a>, <a class="wiki_link" href="/53edo">53edo</a>, to name three) will tune 9/8 close as well.<br />
| | * B to C: [[256/243|limma]] |
| <br />
| | * C to D: [[9/8|whole tone]] |
| See: <a class="wiki_link" href="/Gallery%20of%20Just%20Intervals">Gallery of Just Intervals</a></body></html></pre></div>
| | * D to E: [[9/8|whole tone]] |
| | * E to F: [[256/243|limma]] |
| | * F to G: [[9/8|whole tone]] |
| | * G to A: [[9/8|whole tone]] |
| | This pattern highlights the placement of the whole tone intervals between the note pairs above, distinguishing them from the [[256/243|limma]] that occurs between the other note pairs. |
| | |
| | == See also == |
| | * [[16/9]] – its [[octave complement]] |
| | * [[4/3]] – its [[fifth complement]] |
| | * [[32/27]] – its [[fourth complement]] |
| | * [[Gallery of just intervals]] |
| | * [[List of superparticular intervals]] |
| | |
| | == External links == |
| | * [http://www.tonalsoft.com/monzo/aristoxenus/aristoxenus.aspx The measurement of Aristoxenus's Divisions of the Tetrachord] on [[Tonalsoft Encyclopedia]] |
| | |
| | [[Category:Second]] |
| | [[Category:Whole tone]] |
| | [[Category:Ancient Greek music]] |
| | [[Category:Commas named after their interval size]] |