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English: Lesser diesis defined, in quarter-comma meantone, as the:
  1. difference between diatonic semitone (minor second) and chromatic semitone (augmented unison), or
  2. interval between two enharmonically equivalent notes, from C to D.
Major second = 193.1 cents
Chromatic semitone = 117.1 cents
Diatonic semitone = 76.0 cents
Chromatic - diatonic = diesis = 41.1 cents
Date
Source Own work
Author Paolo.dL
Other versions File:Pythagorean comma (difference A1-m2).PNG

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21 August 2010

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Date/TimeThumbnailDimensionsUserComment
current09:01, 11 April 2023Thumbnail for version as of 09:01, 11 April 2023934 × 173 (13 KB)SentreeReverted to version as of 20:53, 21 August 2010 (UTC): rv, it is not absolutely without exception. On this system, C# = 5/4 x A (440 Hz) = 550 Hz. While Db is 4/5 x 4/5 x octave-higher-A (880 Hz) = 4/5 x F (704) = 563,2 Hz, so in this system, C# is lower than Db.
11:03, 21 July 2022Thumbnail for version as of 11:03, 21 July 2022934 × 173 (6 KB)Lambiamm2 < A1, so put D♭ to the left of C♯
20:53, 21 August 2010Thumbnail for version as of 20:53, 21 August 2010934 × 173 (13 KB)Paolo.dLLarger font, so that it can be read when reduced to about 500 pixels
19:56, 21 August 2010Thumbnail for version as of 19:56, 21 August 2010916 × 137 (9 KB)Paolo.dLScaling to image ratio 76.0 — 41.1 — 76.0
15:49, 21 August 2010Thumbnail for version as of 15:49, 21 August 2010822 × 228 (15 KB)Paolo.dL{{Information |Description={{en|1=Lesser diesis defined as: # difference between diatonic semitone (minor second) and chromatic semitone (augmented unison), or # interval between two enharmonically equivalent notes, from C# to Db.}} |Source={{own}} |Autho

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