diff options
| -rw-r--r-- | doc/misc/calc.texi | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/doc/misc/calc.texi b/doc/misc/calc.texi index 3ba1a9d4d15..db6cad3450c 100644 --- a/doc/misc/calc.texi +++ b/doc/misc/calc.texi @@ -28470,13 +28470,13 @@ B and @c flat and @expr{B}. 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 @expr{C} in octave 4 and is denoted -@expr{C_4}. Any frequency can be described by giving a note plus an +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 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 -@expr{C_(-1)} corresponds to the midi note number 0 and @expr{G_9} +@slanted{C@sub{-1}} corresponds to the midi note number 0 and @slanted{G@sub{9}} 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. |