Armodue theory: Difference between revisions
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''(summary translation from the Italian language site'' [http://www.armodue.com/ricerche.htm Armodue] '')'' | ''(summary translation from the Italian language site'' [http://www.armodue.com/ricerche.htm Armodue] '')'' | ||
Armodue theory | Armodue theory, not only in the sense of [[16edo|16-tone equal temperament]], but also regarding half-equal tuning and [[Lou_Harrison|Lou Harrison]]'s [[JustIntonation|Just intonation]] 16 note scale, the natural octave division by [http://www.pertout.com/ Andrián Pertout], and the 16-to-31 [[OverToneSeries|overtone scale]], is a xenharmonic notation and theory system for 16-note tuning. | ||
In order to make Armodue approachable, while also making its notation distinct from Western diatonic notation, the Italian creators of the [http://armodue.com/ Armodue] system named the notes numbering from 1 to 9: | |||
1, 1#, 2, 2#, 3, 3#, 4, 5, 5#, 6, 6#, 7, 7#, 8, 8#, 9 | 1, 1#, 2, 2#, 3, 3#, 4, 5, 5#, 6, 6#, 7, 7#, 8, 8#, 9 | ||
Consequently, the interval between a note at frequency n and other at frequency 2n is called a ''tenth'' or '' | Consequently, the interval between a note at frequency n and other at frequency 2n is called a ''tenth,'' ''decave,'' or ''decim''. | ||
The basic semitone of Armodue, whatever concrete temperament is used, is always called '''eka''' (from Sanskrit eka: one, unit). In the chromatic Armodue scale, one eka always corresponds to the interval between any two consecutive notes. | The basic semitone of Armodue, whatever concrete temperament is used, is always called '''eka''' (from Sanskrit eka: one, unit). In the chromatic Armodue scale, one eka always corresponds to the interval between any two consecutive notes. | ||
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The notes without accidentals form a [[Mavila|Mavila]] [[7L_2s| | The notes without accidentals form a [[Mavila|Mavila]] [[7L_2s|armotonic scale (7L 2s)]]. | ||
If for the execution of a musical piece we need to write on two or more tetragrams, the notes will be written in the same way for every tetragram. | If for the execution of a musical piece we need to write on two or more tetragrams, the notes will be written in the same way for every tetragram. |