Meantone: Difference between revisions

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=== Other septimal extensions ===
=== Other septimal extensions ===
There are some alternative mappings of the 7-limit meantone, including flattone, dominant and sharptone.  
There are some alternative mappings of the 7-limit meantone, including [[Meantone family #Flattone|flattone]], [[Meantone family #Dominant|dominant]] and [[Meantone family #Sharptone|sharptone]].
==== Flattone ====
==== Flattone ====
'''Flattone''' is an alternative extension of meantone, which 7/4 is represented by a diminished seventh rather than augmented sixth. The fifth interval is adjusted narrower, nine of which give 8/7 and thirteen of which give 10/7 with octave reduction. Alternatively, stacking three minor thirds results in a diminished seventh that is close to 7/4.
'''Flattone''' is an alternative extension of meantone, which 7/4 is represented by a diminished seventh rather than augmented sixth. The fifth interval is adjusted narrower, nine of which give 8/7 and thirteen of which give 10/7 with octave reduction. Alternatively, stacking three minor thirds results in a diminished seventh that is close to 7/4.
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'''Dominant''' is an alternative extension of meantone, which 7/4 is represented by a minor seventh rather than augmented sixth. This results equating 6/5 with 7/6 and 5/4 with 9/7, or tempering out [[36/35]] (septimal quarter tone) and [[64/63]] (Archytas comma).
'''Dominant''' is an alternative extension of meantone, which 7/4 is represented by a minor seventh rather than augmented sixth. This results equating 6/5 with 7/6 and 5/4 with 9/7, or tempering out [[36/35]] (septimal quarter tone) and [[64/63]] (Archytas comma).
==== Sharptone ====
==== Sharptone ====
'''Sharptone''' is a low-accuracy temperament which which 7/4 is represented by a major sixth. This results equating 7/6 with 9/8 and 4/3 with 7/5, or tempering out [[21/20]] and [[28/27]].
'''Sharptone''' is a low-accuracy temperament which 7/4 is represented by a major sixth. This results equating 7/6 with 9/8 and 4/3 with 7/5, or tempering out [[21/20]] and [[28/27]].


== Chords ==
== Chords ==