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The '''classic chromatic semitone''' (short: '''chroma'''), '''25/24''', 70.672 cents, is the [[superparticular]] ratio which marks the difference between the 5-limit thirds, [[6/5]] and [[5/4]], and sixths, [[8/5]] and [[5/3]]. It is therefore the amount which sharpens or flattens a 5-limit third or sixth, and when notating 5-limit just intonation it can be associated with the sharp or flat symbol, and along with an additional symbol for the [[81/80]] comma, it can be used for a complete system of [[5-limit]] notation. If it is treated as a comma to be tempered out, you remove the distinction between major & minor thirds and get only a single neutral interval in their place as in [[10edo]] or [[17edo]]

The '''classic chromatic semitone''' (short: '''chroma'''), '''25/24''', 70.672 cents, is the [[superparticular]] ratio which marks the difference between the 5-limit thirds, [[6/5]] and [[5/4]], and sixths, [[8/5]] and [[5/3]]. It is therefore the amount which sharpens or flattens a 5-limit third or sixth, and when notating 5-limit just intonation it can be associated with the sharp or flat symbol, and along with an additional symbol for the [[81/80]] comma, it can be used for a complete system of [[5-limit]] notation. If it is treated as a comma to be tempered out, you remove the distinction between major & minor thirds and get only a single neutral interval in their place as in [[dicot family]], and edos like [[10edo]] or [[17edo]].

It is very accurately approximated by 34edo (2\34).

== See also ==

* [[36/25]] – its [[fifth complement]]

* [[48/25]] -- its [[octave complement]]

* [[48/25]] – its [[octave complement]]

* [[Dicot family]], which tempers it out

* [[Gallery of just intervals]]

* [[Medium ~~commas~~]]

* [[Medium comma]]

* [[Chroma]] -- a generalising concept for [[MOS]] scales

* [[List of superparticular intervals]]

* [[Chroma]] – a generalising concept for [[MOS]] scales

[[Category:5-limit]]

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-The '''classic chromatic semitone''' (short: '''chroma'''), '''25/24''', 70.672 cents, is the [[superparticular]] ratio which marks the difference between the 5-limit thirds, [[6/5]] and [[5/4]], and sixths, [[8/5]] and [[5/3]]. It is therefore the amount which sharpens or flattens a 5-limit third or sixth, and when notating 5-limit just intonation it can be associated with the sharp or flat symbol, and along with an additional symbol for the [[81/80]] comma, it can be used for a complete system of [[5-limit]] notation. If it is treated as a comma to be tempered out, you remove the distinction between major & minor thirds and get only a single neutral interval in their place as in [[10edo]] or [[17edo]]
+The '''classic chromatic semitone''' (short: '''chroma'''), '''25/24''', 70.672 cents, is the [[superparticular]] ratio which marks the difference between the 5-limit thirds, [[6/5]] and [[5/4]], and sixths, [[8/5]] and [[5/3]]. It is therefore the amount which sharpens or flattens a 5-limit third or sixth, and when notating 5-limit just intonation it can be associated with the sharp or flat symbol, and along with an additional symbol for the [[81/80]] comma, it can be used for a complete system of [[5-limit]] notation. If it is treated as a comma to be tempered out, you remove the distinction between major & minor thirds and get only a single neutral interval in their place as in [[dicot family]], and edos like [[10edo]] or [[17edo]].
+It is very accurately approximated by 34edo (2\34).
 == See also ==
+* [[36/25]] – its [[fifth complement]]
-* [[48/25]] -- its [[octave complement]]
+* [[48/25]] – its [[octave complement]]
+* [[Dicot family]], which tempers it out
 * [[Gallery of just intervals]]
-* [[Medium commas]]
+* [[Medium comma]]
-* [[Chroma]] -- a generalising concept for [[MOS]] scales
+* [[List of superparticular intervals]]
+* [[Chroma]] – a generalising concept for [[MOS]] scales
 [[Category:5-limit]]