Docs: LM 5.1.2 Add recommendation for transposing

[lilypond.git] / ly / music-functions-init.ly

diff --git a/ly/music-functions-init.ly b/ly/music-functions-init.ly
index 2c6236a1e1044a2b5d3587901a852b2f12f4c84f..322dfa251183ce5ffc27bc08a85aa4db170ec0bb 100644 (file)
--- a/ly/music-functions-init.ly
+++ b/ly/music-functions-init.ly
@@ -174,7 +174,8 @@ in a CueVoice oriented by @var{dir}.")
 
 displayLilyMusic =
 #(define-music-function (parser location music) (ly:music?)
-  (_i "Display  @var{music} to the console in LilyPond input notation.")
+  (_i "Display  the LilyPond input representation of @var{music}
+to the console.")
    (newline)
    (display-lily-music music parser)
    music)
@@ -215,9 +216,7 @@ endSpanners =
 
 featherDurations=
 #(define-music-function (parser location factor argument) (ly:moment? ly:music?)
-   (_i "Rearrange durations in ARGUMENT so there is an
-acceleration/deceleration. ")
-   
+ (_i "Adjust durations of music in @var{argument} by rational @var{factor}. ")
    (let*
        ((orig-duration (ly:music-length argument))
        (multiplier (ly:make-moment 1 1)))
@@ -240,8 +239,8 @@ acceleration/deceleration. ")
      argument))
 
 grace =
-#(def-grace-function startGraceMusic stopGraceMusic)
-
+#(def-grace-function startGraceMusic stopGraceMusic
+   (_i "Insert @var{music} as grace notes."))
 
 "instrument-definitions" = #'()
 
@@ -257,6 +256,8 @@ addInstrumentDefinition =
 instrumentSwitch =
 #(define-music-function
    (parser location name) (string?)
+   (_i "Switch instrument to @var{name}, which must be predefined with 
+@var{\addInstrumentDefinition}.")
    (let*
        ((handle  (assoc name instrument-definitions))
        (instrument-def (if handle (cdr handle) '()))
@@ -280,8 +281,8 @@ instrumentSwitch =
 
 includePageLayoutFile = 
 #(define-music-function (parser location) ()
-   (_i "If page breaks and tweak dump is not asked, and the file
-<basename>-page-layout.ly exists, include it.")
+   (_i "Include the file @var{<basename>-page-layout.ly}. Deprecated as
+part of two-pass spacing.")
    (if (not (ly:get-option 'dump-tweaks))
        (let ((tweak-filename (format #f "~a-page-layout.ly"
                                     (ly:parser-output-name parser))))
@@ -294,11 +295,10 @@ includePageLayoutFile =
                                                tweak-filename))))))
    (make-music 'SequentialMusic 'void #t))
 
-
-
 keepWithTag =
 #(define-music-function
   (parser location tag music) (symbol? ly:music?)
+  (_i "Include only elements of @var{music} that are tagged with @var{tag}.")
   (music-filter
    (lambda (m)
     (let* ((tags (ly:music-property m 'tags))
@@ -311,6 +311,7 @@ keepWithTag =
 removeWithTag = 
 #(define-music-function
   (parser location tag music) (symbol? ly:music?)
+  (_i "Remove elements of @var{music} that are tagged with @var{tag}.")
   (music-filter
    (lambda (m)
     (let* ((tags (ly:music-property m 'tags))
@@ -322,6 +323,7 @@ killCues =
 #(define-music-function
    (parser location music)
    (ly:music?)
+   (_i "Remove cue notes from @var{music}.")
    (music-map
     (lambda (mus)
       (if (string? (ly:music-property mus 'quoted-music-name))
@@ -330,7 +332,7 @@ killCues =
 
 label = 
 #(define-music-function (parser location label) (symbol?)
-   (_i "Place a bookmarking label, either at top-level or inside music.")
+   (_i "Create @var{label} as a bookmarking label")
    (make-music 'EventChord
               'page-marker #t
               'page-label label
@@ -340,6 +342,7 @@ label =
 makeClusters =
 #(define-music-function
                (parser location arg) (ly:music?)
+   (_i "Display chords in @var{arg} as clusters")
                (music-map note-to-cluster arg))
 
 musicMap =