From: Po Lu Date: Wed, 9 Aug 2023 01:21:36 +0000 (+0800) Subject: * doc/misc/calc.texi (Musical Notes): Fix build with Texinfo 4.13. X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=391ff93f763228fb62a8d658a190a60e4a0a1791;p=emacs.git * doc/misc/calc.texi (Musical Notes): Fix build with Texinfo 4.13. --- diff --git a/doc/misc/calc.texi b/doc/misc/calc.texi index 00c0fa6001a..5064f76e7b8 100644 --- a/doc/misc/calc.texi +++ b/doc/misc/calc.texi @@ -28476,12 +28476,12 @@ B and the octave numbered 0 was chosen to correspond to the lowest audible frequency. Using this system, middle C (about 261.625 Hz) corresponds to the note @slanted{C} in octave 4 and is denoted -@slanted{C@sub{4}}. Any frequency can be described by giving a note plus an +@slanted{C4}. Any frequency can be described by giving a note plus an offset in cents (where a cent is a ratio of frequencies so that a semitone consists of 100 cents). The midi note number system assigns numbers to notes so that -@slanted{C@sub{-1}} corresponds to the midi note number 0 and @slanted{G@sub{9}} +@slanted{C-1} corresponds to the midi note number 0 and @slanted{G9} corresponds to the midi note number 127. A midi controller can have up to 128 keys and each midi note number from 0 to 127 corresponds to a possible key.