Keyboard: Difference between revisions
Wikispaces>hstraub **Imported revision 35455993 - Original comment: ** |
Wikispaces>hstraub **Imported revision 35523271 - Original comment: ** |
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<h2>IMPORTED REVISION FROM WIKISPACES</h2> | <h2>IMPORTED REVISION FROM WIKISPACES</h2> | ||
This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br> | This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br> | ||
: This revision was by author [[User:hstraub|hstraub]] and made on <tt>2008-08- | : This revision was by author [[User:hstraub|hstraub]] and made on <tt>2008-08-19 06:33:32 UTC</tt>.<br> | ||
: The original revision id was <tt> | : The original revision id was <tt>35523271</tt>.<br> | ||
: The revision comment was: <tt></tt><br> | : The revision comment was: <tt></tt><br> | ||
The revision contents are below, presented both in the original Wikispaces Wikitext format, and in HTML exactly as Wikispaces rendered it.<br> | 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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Use several keyboards whose keys are slightly detuned against each other. | Use several keyboards whose keys are slightly detuned against each other. | ||
Advantages are that the keyboard layout keeps the familiar property that 12 key steps span one octave, and the pitches typically need only minor retuning | Advantages are that the keyboard layout keeps the familiar property that 12 key steps span one octave, and the pitches typically need only minor retuning. This is not unimportant for acoustical instruments, where we usually have physical limits to the amount a pitch can be retuned. | ||
The disadvantage is, of course, that you need several keyboards, pianos | The disadvantage is, of course, that you need several keyboards. In the case of acoustic pianos, this means in practice that the maximal number of pitches per octave you can obtain is limited (to the number of pianos you can put on the stage together...) | ||
Electronic keyboards sometimes have the possibility to play in "split" mode, i.e. the upper and the lower half of the keyboard can send to different midi channels. Some keyboards offer up to 4 split areas. In this case, you need only one keyboard - but you still have the disadvantage of having to jump between the areas. | Electronic keyboards sometimes have the possibility to play in "split" mode, i.e. the upper and the lower half of the keyboard can send to different midi channels. Some keyboards offer up to 4 split areas. In this case, you need only one keyboard - but you still have the disadvantage of having to jump between the areas. | ||
[[SeventeenTonePianoProject#pianotuningdetails|"12 note octave scales" piano tuning instructions for 17edo]] | |||
"12 note octave scales" piano tuning instructions for 19edo | |||
"12 note octave scales" piano tuning instructions for 22edo | |||
"12 note octave scales" piano tuning instructions for 41edo | |||
===2) Full Keyboard Scales=== | ===2) Full Keyboard Scales=== | ||
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Some synthesizers support this, but not all (see, again, [[http://www.microtonal-synthesis.com|www.microtonal-synthesis.com]]). | Some synthesizers support this, but not all (see, again, [[http://www.microtonal-synthesis.com|www.microtonal-synthesis.com]]). | ||
In the case of acoustical instruments such as pianos, | A possible "full keyboard scales" piano tuning for [[22edo]], mapping two keyboard octaves to one acoustic octave, is decribed in [[http://lumma.org/tuning/erlich/erlich-decatonic.pdf|Paul Erlich's paper on 22edo]], on page 11. | ||
In the case of acoustical instruments such as pianos, however, tuning full keyboard scales may even require major changes in construction. It has been done, however, e.g. on the [[http://www.sauter-pianos.de/english/pianos/microtone.html|16th tone (96edo) piano]]. | |||
===3) Get an alternative keyboard!=== | ===3) Get an alternative keyboard!=== | ||
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Use several keyboards whose keys are slightly detuned against each other.<br /> | Use several keyboards whose keys are slightly detuned against each other.<br /> | ||
<br /> | <br /> | ||
Advantages are that the keyboard layout keeps the familiar property that 12 key steps span one octave, and the pitches typically need only minor retuning | Advantages are that the keyboard layout keeps the familiar property that 12 key steps span one octave, and the pitches typically need only minor retuning. This is not unimportant for acoustical instruments, where we usually have physical limits to the amount a pitch can be retuned.<br /> | ||
<br /> | <br /> | ||
The disadvantage is, of course, that you need several keyboards, pianos | The disadvantage is, of course, that you need several keyboards. In the case of acoustic pianos, this means in practice that the maximal number of pitches per octave you can obtain is limited (to the number of pianos you can put on the stage together...)<br /> | ||
<br /> | <br /> | ||
Electronic keyboards sometimes have the possibility to play in &quot;split&quot; mode, i.e. the upper and the lower half of the keyboard can send to different midi channels. Some keyboards offer up to 4 split areas. In this case, you need only one keyboard - but you still have the disadvantage of having to jump between the areas.<br /> | Electronic keyboards sometimes have the possibility to play in &quot;split&quot; mode, i.e. the upper and the lower half of the keyboard can send to different midi channels. Some keyboards offer up to 4 split areas. In this case, you need only one keyboard - but you still have the disadvantage of having to jump between the areas.<br /> | ||
<br /> | |||
<a class="wiki_link" href="/SeventeenTonePianoProject#pianotuningdetails">&quot;12 note octave scales&quot; piano tuning instructions for 17edo</a><br /> | |||
&quot;12 note octave scales&quot; piano tuning instructions for 19edo<br /> | |||
&quot;12 note octave scales&quot; piano tuning instructions for 22edo<br /> | |||
&quot;12 note octave scales&quot; piano tuning instructions for 41edo<br /> | |||
<br /> | <br /> | ||
<!-- ws:start:WikiTextHeadingRule:4:&lt;h3&gt; --><h3 id="toc2"><a name="x-Strategies for more than 12 tones per octave-2) Full Keyboard Scales"></a><!-- ws:end:WikiTextHeadingRule:4 -->2) Full Keyboard Scales</h3> | <!-- ws:start:WikiTextHeadingRule:4:&lt;h3&gt; --><h3 id="toc2"><a name="x-Strategies for more than 12 tones per octave-2) Full Keyboard Scales"></a><!-- ws:end:WikiTextHeadingRule:4 -->2) Full Keyboard Scales</h3> | ||
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Some synthesizers support this, but not all (see, again, <a class="wiki_link_ext" href="http://www.microtonal-synthesis.com" rel="nofollow">www.microtonal-synthesis.com</a>).<br /> | Some synthesizers support this, but not all (see, again, <a class="wiki_link_ext" href="http://www.microtonal-synthesis.com" rel="nofollow">www.microtonal-synthesis.com</a>).<br /> | ||
<br /> | <br /> | ||
In the case of acoustical instruments such as pianos, | A possible &quot;full keyboard scales&quot; piano tuning for <a class="wiki_link" href="/22edo">22edo</a>, mapping two keyboard octaves to one acoustic octave, is decribed in <a class="wiki_link_ext" href="http://lumma.org/tuning/erlich/erlich-decatonic.pdf" rel="nofollow">Paul Erlich's paper on 22edo</a>, on page 11.<br /> | ||
<br /> | |||
In the case of acoustical instruments such as pianos, however, tuning full keyboard scales may even require major changes in construction. It has been done, however, e.g. on the <a class="wiki_link_ext" href="http://www.sauter-pianos.de/english/pianos/microtone.html" rel="nofollow">16th tone (96edo) piano</a>.<br /> | |||
<br /> | <br /> | ||
<!-- ws:start:WikiTextHeadingRule:6:&lt;h3&gt; --><h3 id="toc3"><a name="x-Strategies for more than 12 tones per octave-3) Get an alternative keyboard!"></a><!-- ws:end:WikiTextHeadingRule:6 -->3) Get an alternative keyboard!</h3> | <!-- ws:start:WikiTextHeadingRule:6:&lt;h3&gt; --><h3 id="toc3"><a name="x-Strategies for more than 12 tones per octave-3) Get an alternative keyboard!"></a><!-- ws:end:WikiTextHeadingRule:6 -->3) Get an alternative keyboard!</h3> | ||