https://xenreference.com/wiki/index.php?action=history&feed=atom&title=Notation%2FGeneralizations_of_sharp_and_flat 2026-06-21T08:21:50Z Revision history for this page on the wiki MediaWiki 1.44.2 https://xenreference.com/wiki/index.php?title=Notation/Generalizations_of_sharp_and_flat&diff=6611&oldid=prev 2026-04-30T07:09:37Z

<p>Created page with &quot;In modern 12edo theory, the accidentals sharp (#) and flat (b) refer to alterations by a single edostep, formally a &#039;&#039;chromatic semitone&#039;&#039;. Various generalizations of this exist, some compatible with the historical meaning which treated the chromatic semitone as a notable structural interval as it is functionally today. == Consensus == The consensus is that where the interval 2187/2048 is present and structurally relevant, the symbols # and b unambiguously refer to an a...&quot;</p> <p><b>New page</b></p><div>In modern 12edo theory, the accidentals sharp (#) and flat (b) refer to alterations by a single edostep, formally a &#039;&#039;chromatic semitone&#039;&#039;. Various generalizations of this exist, some compatible with the historical meaning which treated the chromatic semitone as a notable structural interval as it is functionally today.<br /> <br /> == Consensus ==<br /> The consensus is that where the interval 2187/2048 is present and structurally relevant, the symbols # and b unambiguously refer to an alteration by that interval. This is equivalent to the historical meaning in meantone and Pythagorean tunings. The use of the # and b symbols outside this context is less immediately clear, however.<br /> <br /> == Other interpretations ==<br /> &#039;&#039;TODO:&#039;&#039;<br /> <br /> - sharp as diatonic A1 regardless of system<br /> <br /> - sharp as moschroma<br /> <br /> - sharp as ben johnston chroma<br /> <br /> - sharp as edostep<br /> <br /> - sharp as ~100c alteration (probably wad says this but i&#039;ll go check with him)</div>

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