Issue 5167/6: Changes: show \markup xxx = ... \etc assignments

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

diff --git a/ly/music-functions-init.ly b/ly/music-functions-init.ly
index d7eba42a4b03159d4b14860031596db4930111ff..d41da5b5b6c925c8332ba498875d8b6deaffbdb0 100644 (file)
--- a/ly/music-functions-init.ly
+++ b/ly/music-functions-init.ly
@@ -67,19 +67,20 @@ given fraction of the main note's duration has passed.  If
 @code{afterGraceFraction} which has a default value of @code{3/4}.")
    (let ((main-length (ly:music-length main))
          (fraction (or fraction (ly:parser-lookup 'afterGraceFraction))))
-     (make-simultaneous-music
-      (list
-       main
-       (make-sequential-music
-        (list
-
-         (make-music 'SkipMusic
-                     'duration (ly:make-duration
-                                0 0
-                                (* (ly:moment-main main-length)
-                                   (/ (car fraction) (cdr fraction)))))
-         (make-music 'GraceMusic
-                     'element grace)))))))
+     (descend-to-context
+      (make-simultaneous-music
+       (list
+        main
+        (make-sequential-music
+         (list
+          (make-music 'SkipMusic
+                      'duration (ly:make-duration
+                                 0 0
+                                 (* (ly:moment-main main-length)
+                                    (/ (car fraction) (cdr fraction)))))
+          (make-music 'GraceMusic
+                      'element grace)))))
+      'Bottom)))
 
 
 %% music identifiers not allowed at top-level,
@@ -104,7 +105,8 @@ a starting spanner event, or a symbol list in the form
 form of a spanner event, @var{property} may also have the form
 @samp{Grob.property} for specifying a directed tweak.")
   (if (ly:music? item)
-      (if (eq? (ly:music-property item 'span-direction) START)
+      (if (or (eqv? (ly:music-property item 'span-direction) START)
+              (music-is-of-type? item 'tie-event))
           (tweak property (value-for-spanner-piece arg) item)
           (begin
             (ly:music-warning item (_ "not a spanner"))
@@ -828,20 +830,11 @@ transpose from @var{around} to @var{to}.")
    (music-invert around to music))
 
 mark =
-#(define-music-function
-   (label) ((number-or-markup?))
-  "Make the music for the \\mark command."
-  (let* ((set (and (integer? label)
-                   (context-spec-music (make-property-set 'rehearsalMark label)
-                                      'Score)))
-         (ev (make-music 'MarkEvent
-                         'origin (*location*))))
-
-    (if set
-        (make-sequential-music (list set ev))
-        (begin
-          (if label (set! (ly:music-property ev 'label) label))
-          ev))))
+#(define-music-function (label) ((number-or-markup?))
+   "Make the music for the \\mark command."
+   (if label
+       (make-music 'MarkEvent 'label label)
+       (make-music 'MarkEvent)))
 
 markupMap =
 #(define-music-function (path markupfun music)
@@ -1993,6 +1986,28 @@ entries are @code{volta}, @code{tremolo} or @code{percent}.  Multiple entries
 are possible.")
    (unfold-repeats types music))
 
+voices =
+#(define-music-function (ids music) (key-list? ly:music?)
+   (_i "Take the given key list of numbers (indicating the use of
+@samp{\\voiceOne}@dots{}) or symbols (indicating voice names,
+typically converted from strings by argument list processing)
+and assign the following @code{\\\\}-separated music to
+contexts according to that list.  Named rather than numbered
+contexts can be used for continuing one voice (for the sake of
+spanners and lyrics), usually requiring a @code{\\voiceOne}-style
+override at the beginning of the passage and a @code{\\oneVoice}
+override at its end.
+
+The default
+@example
+<< @dots{} \\\\ @dots{} \\\\ @dots{} >>
+@end example
+construct would correspond to
+@example
+\\voices 1,2,3 << @dots{} \\\\ @dots{} \\\\ @dots{} >>
+@end example")
+   (voicify-music music ids))
+
 void =
 #(define-void-function (arg) (scheme?)
    (_i "Accept a scheme argument, return a void expression.