Make arguments like Context.GrobName accessible as symbol lists

Documentation/notation/spacing.itely

 @c -*- coding: utf-8; mode: texinfo; -*-
 
 @ignore
     Translation of GIT committish: FILL-IN-HEAD-COMMITTISH
 
     When revising a translation, copy the HEAD committish of the
     version that you are working on.  For details, see the Contributors'
     Guide, node Updating translation committishes..
 @end ignore
 
-@c \version "2.16.0"
+@c \version "2.17.6"
 
 @ignore
 GDP TODO list
 
 Negative numbers are allowed:
 > Are you sure? The following works well
 > \paper{
 >   first-page-number = -2
 > }
 > and prints page number -1 on the second page, for example.
 
 
 In 5.2.1 the @refbugs (line 495 in spacing.itely on master) it
 states:
 
 "@code{layout-set-staff-size} does not change the distance between
 the
 staff lines."
 
 Could we add a sentence:
 "Use instead the pair               fontSize = #@var{N}
-            \override StaffSymbol #'staff-space = #(magstep
+            \override StaffSymbol.staff-space = #(magstep
 @var{N})
 inside the Staff context to change the size of the font and the
 distance between
 staff lines accordingly."
 
 Actually I found, that the @internalsref{StaffSymbol} at line 481
 sends to an incomplete
 documentation.  The property staff-space is not explained here.  I
 thought Y-extent might be of
 help, but it is in turn explained by x-space which again is
@@ skipping 1065 matching lines @@
 
 @end itemize
 
 Here is an example @code{\layout} block:
 
 @example
 \layout @{
   indent = 2\cm
   \context @{
     \StaffGroup
-    \override StaffGrouper #'staff-staff-spacing #'basic-distance = #8
+    \override StaffGrouper.staff-staff-spacing.basic-distance = #8
   @}
   \context @{
     \Voice
-    \override TextScript #'padding = #1
-    \override Glissando #'thickness = #3
+    \override TextScript.padding = #1
+    \override Glissando.thickness = #3
   @}
 @}
 @end example
 
 Multiple @code{\layout} blocks can be entered as toplevel expressions.
 This can, for example, be useful if different settings are stored in
 separate files and included optionally.  Internally, when
 a @code{\layout} block is evaluated, a copy of the current
 @code{\layout} configuration is made, then any changes defined within
 the block are applied and the result is saved as the new current
 configuration.  From the user's perspective the @code{\layout} blocks
 are combined, but in conflicting situations (when the same property
 is changed in different blocks) the later definitions take precedence.
 
 For example, if this block:
 
 @example
 \layout @{
   \context @{
     \Voice
-    \override TextScript #'color = #magenta
-    \override Glissando #'thickness = #1.5
+    \override TextScript.color = #magenta
+    \override Glissando.thickness = #1.5
   @}
 @}
 @end example
 
 is placed after the one from the preceding example the @code{'padding}
 and @code{'color} overrides for @code{TextScript} are combined, but
 the later @code{'thickness} override for @code{Glissando} replaces
 (or hides) the earlier one.
 
 @code{\layout} blocks may be assigned to variables for reuse later,
 but the way this works is slightly but significantly different from
 writing them literally.
 
 If a variable is defined like this:
 
 @example
 layoutVariable = \layout @{
   \context @{
     \Voice
-    \override NoteHead #'font-size = #4
+    \override NoteHead.font-size = #4
   @}
 @}
 @end example
 
 it will hold the current @code{\layout} configuration with the
 @code{NoteHead #'font-size} override added, but this combination
 is @emph{not} saved as the new current configuration.  Be aware
 that the @q{current configuration} is read when the variable is
 defined and not when it is used, so the content of the variable
 is dependent on its position in the source.
 
 The variable can then be used inside another @code{\layout} block,
 for example:
 
 @example
 \layout @{
   \layoutVariable
   \context @{
     \Voice
-    \override NoteHead #'color = #red
+    \override NoteHead.color = #red
   @}
 @}
 @end example
 
 A @code{\layout} block containing a variable, as in the example above,
 does @emph{not} copy the current configuration but instead uses the
 content of @code{\layoutVariable} as the base configuration for the
 further additions.  This means that any changes defined between the
 definition and the use of the variable are lost.
 
@@ skipping 197 matching lines @@
 } \relative c'' {
   <<
     { c2. \times 2/3 { c4 c c } c2. | }
     { s1 | \break s1 | }
   >>
 }
 @end lilypond
 
 Similarly, line breaks are normally forbidden when beams cross bar
 lines.  This behavior can be changed by setting
-@code{\override Beam #'breakable = ##t}:
+@code{\override Beam.breakable = ##t}:
 
 @lilypond[quote,ragged-right,relative=2,verbatim]
-\override Beam #'breakable = ##t
+\override Beam.breakable = ##t
 c2. c8[ c | \break
 c8 c] c2. |
 @end lilypond
 
 The @code{\noBreak} command forbids a line break at the bar line
 where it is inserted.
 
 The most basic settings influencing line spacing are @code{indent}
 and @code{line-width}.  They are set in the @code{\layout} block.
 They control the indentation of the first line of music, and the
@@ skipping 278 matching lines @@
 still be honored.  The height of the page will
 be left unmodified.
 
 @node Explicit breaks
 @subsection Explicit breaks
 
 Lily sometimes rejects explicit @code{\break} and @code{\pageBreak}
 commands.  There are two commands to override this behavior:
 
 @example
-\override NonMusicalPaperColumn #'line-break-permission = ##f
-\override NonMusicalPaperColumn #'page-break-permission = ##f
+\override NonMusicalPaperColumn.line-break-permission = ##f
+\override NonMusicalPaperColumn.page-break-permission = ##f
 @end example
 
 When @code{line-break-permission} is overridden to false, Lily will insert
 line breaks at explicit @code{\break} commands and nowhere else.  When
 @code{page-break-permission} is overridden to false, Lily will insert
 page breaks at explicit @code{\pageBreak} commands and nowhere else.
 
 @lilypond[quote,verbatim]
 \paper {
   indent = #0
@@ skipping 10 matching lines @@
     \repeat unfold 6 { \music } \break
     \repeat unfold 8 { \music } \pageBreak
     \repeat unfold 8 { \music } \break
     \repeat unfold 6 { \music } \break
     \repeat unfold 4 { \music } \break
     \repeat unfold 2 { \music }
   }
   \layout {
     \context {
       \Score
-      \override NonMusicalPaperColumn #'line-break-permission = ##f
-      \override NonMusicalPaperColumn #'page-break-permission = ##f
+      \override NonMusicalPaperColumn.line-break-permission = ##f
+      \override NonMusicalPaperColumn.page-break-permission = ##f
     }
   }
 }
 @end lilypond
 
 @seealso
 Snippets:
 @rlsr{Spacing}.
 
 
@@ skipping 45 matching lines @@
 This pattern becomes especially helpful when overriding
 @code{line-break-system-details} and the other useful but long properties of
 @code{NonMusicalPaperColumnGrob}, as explained in @ref{Vertical spacing}.
 
 @lilypond[quote,verbatim]
 music = \relative c'' { c4 c c c }
 
 \score {
   \new Staff <<
     \new Voice {
-      \overrideProperty "Score.NonMusicalPaperColumn"
-        #'line-break-system-details #'((Y-offset . 0))
+      \overrideProperty Score.NonMusicalPaperColumn
+        line-break-system-details #'((Y-offset . 0))
       s1 * 2 \break
 
-      \overrideProperty "Score.NonMusicalPaperColumn"
-        #'line-break-system-details #'((Y-offset . 35))
+      \overrideProperty Score.NonMusicalPaperColumn
+        line-break-system-details #'((Y-offset . 35))
       s1 * 3 \break
 
-      \overrideProperty "Score.NonMusicalPaperColumn"
-        #'line-break-system-details #'((Y-offset . 70))
+      \overrideProperty Score.NonMusicalPaperColumn
+        line-break-system-details #'((Y-offset . 70))
       s1 * 6 \break
 
-      \overrideProperty "Score.NonMusicalPaperColumn"
-        #'line-break-system-details #'((Y-offset . 105))
+      \overrideProperty Score.NonMusicalPaperColumn
+        line-break-system-details #'((Y-offset . 105))
       s1 * 5 \break
     }
     \new Voice {
       \repeat unfold 2 { \music }
       \repeat unfold 3 { \music }
       \repeat unfold 6 { \music }
       \repeat unfold 5 { \music }
     }
   >>
 }
@@ skipping 123 matching lines @@
 @item @code{FretBoards}  @tab top line
 @end multitable
 
 In the following image, horizontal lines indicate the positions
 of these reference points:
 
 @lilypond[quote,noragged-right,line-width=110\mm]
 #(define zero-space '((padding . -inf.0) (basic-distance . 0)))
 
 alignToZero = \with {
-  \override VerticalAxisGroup #'nonstaff-relatedstaff-spacing = #zero-space
-  \override VerticalAxisGroup #'nonstaff-nonstaff-spacing = #zero-space
+  \override VerticalAxisGroup.nonstaff-relatedstaff-spacing = #zero-space
+  \override VerticalAxisGroup.nonstaff-nonstaff-spacing = #zero-space
 }
 lowerCaseChords = \with {
   chordNameLowercaseMinor = ##t
 }
 staffAffinityDown = \with {
-  \override VerticalAxisGroup #'staff-affinity = #DOWN
+  \override VerticalAxisGroup.staff-affinity = #DOWN
 }
 labelContext =
 #(define-music-function
      (parser location context)
      (string?)
    #{ s1*0^\markup { \typewriter #context } #})
 
 \layout {
   \context { \Dynamics    \alignToZero }
   \context { \FiguredBass \alignToZero }
   \context { \Lyrics      \alignToZero }
   \context { \NoteNames   \alignToZero \staffAffinityDown }
   \context { \ChordNames  \alignToZero
                           \staffAffinityDown
                           \lowerCaseChords }
   \context { \FretBoards  \alignToZero \staffAffinityDown }
   \context { \Score
-    \override BarLine #'stencil = ##f
-    \override DynamicText #'self-alignment-X = #-1
-    \override FretBoard #'X-offset = #1.75
-    \override InstrumentName #'minimum-Y-extent = #'(-2 . 2)
-    \override InstrumentName #'extra-offset = #'(0 . -0.5)
-    \override TextScript #'minimum-Y-extent = #'(-2 . 3)
-    \override TimeSignature #'stencil = ##f
+    \override BarLine.stencil = ##f
+    \override DynamicText.self-alignment-X = #-1
+    \override FretBoard.X-offset = #1.75
+    \override InstrumentName.minimum-Y-extent = #'(-2 . 2)
+    \override InstrumentName.extra-offset = #'(0 . -0.5)
+    \override TextScript.minimum-Y-extent = #'(-2 . 3)
+    \override TimeSignature.stencil = ##f
   }
 }
 
 %% These contexts have reference points at the baseline:
 %%   ChordNames, NoteNames, and Lyrics
 <<
   \new ChordNames { \chords { g1:m } }
   \new NoteNames { s1 | g1 | }
   \new RhythmicStaff {
     \set RhythmicStaff.instrumentName = #"baseline "
@@ skipping 42 matching lines @@
 Grob properties should be adjusted with an @code{\override} inside
 a @code{\score} or @code{\layout} block, and not inside a
 @code{\paper} block.
 
 The following example demonstrates the two ways these alists can
 be modified.  The first declaration updates one key-value
 individually, and the second completely re-defines the property:
 
 @example
 \new Staff \with @{
-  \override VerticalAxisGroup #'default-staff-staff-spacing
-       #'basic-distance = #10
+  \override VerticalAxisGroup.default-staff-staff-spacing.basic-distance = #10
 @} @{ @dots{} @}
 
 \new Staff \with @{
-  \override VerticalAxisGroup #'default-staff-staff-spacing =
+  \override VerticalAxisGroup.default-staff-staff-spacing =
     #'((basic-distance . 10)
        (minimum-distance . 9)
        (padding . 1)
        (stretchability . 10))
 @} @{ @dots{} @}
 @end example
 
 To change any spacing settings globally, put them in the
 @code{\layout} block:
 
 @example
 \layout @{
   \context @{
     \Staff
-    \override VerticalAxisGroup #'default-staff-staff-spacing
-         #'basic-distance = #10
+    \override VerticalAxisGroup.default-staff-staff-spacing.basic-distance = #10
   @}
 @}
 @end example
 
 Standard settings for the vertical spacing grob properties are
 listed in @rinternals{VerticalAxisGroup} and
 @rinternals{StaffGrouper}.  Default overrides for specific types
 of non-staff lines are listed in the relevant context descriptions
 in @rinternals{Contexts}.
 
@@ skipping 137 matching lines @@
 The following example shows how the @code{default-staff-staff-spacing}
 property can affect the spacing of ungrouped staves.
 The same overrides applied to @code{staff-staff-spacing} would
 have the same effect, but would also apply in cases where the staves
 are combined in a group or groups.
 
 @lilypond[verbatim,quote,staffsize=16]
 \layout {
   \context {
     \Staff
-    \override VerticalAxisGroup #'default-staff-staff-spacing =
+    \override VerticalAxisGroup.default-staff-staff-spacing =
       #'((basic-distance . 8)
          (minimum-distance . 7)
          (padding . 1))
   }
 }
 
 <<
   % The very low note here needs more room than 'basic-distance
   % can provide, so the distance between this staff and the next
   % is determined by 'padding.
   \new Staff { b,2 r | }
 
   % Here, 'basic-distance provides enough room, and there is no
   % need to compress the space (towards 'minimum-distance) to make
   % room for anything else on the page, so the distance between
   % this staff and the next is determined by 'basic-distance.
   \new Staff { \clef bass g2 r | }
 
   % By setting 'padding to a negative value, staves can be made to
   % collide.  The lowest acceptable value for 'basic-distance is 0.
   \new Staff \with {
-    \override VerticalAxisGroup #'default-staff-staff-spacing =
+    \override VerticalAxisGroup.default-staff-staff-spacing =
       #'((basic-distance . 3.5)
          (padding . -10))
   } { \clef bass g2 r | }
   \new Staff { \clef bass g2 r | }
 >>
 @end lilypond
 
 @seealso
 Installed Files:
 @file{scm/define-grobs.scm}.
@@ skipping 34 matching lines @@
 These grob properties are described individually above; see
 @ref{Within-system spacing properties}.
 
 The following example shows how properties of the
 @code{StaffGrouper} grob can affect the spacing of grouped staves:
 
 @lilypond[verbatim,quote,staffsize=16]
 \layout {
   \context {
     \Score
-    \override StaffGrouper #'staff-staff-spacing #'padding = #0
-    \override StaffGrouper #'staff-staff-spacing #'basic-distance = #1
+    \override StaffGrouper.staff-staff-spacing.padding = #0
+    \override StaffGrouper.staff-staff-spacing.basic-distance = #1
   }
 }
 
 <<
   \new PianoStaff \with {
-    \override StaffGrouper #'staffgroup-staff-spacing #'basic-distance = #20
+    \override StaffGrouper.staffgroup-staff-spacing.basic-distance = #20
   } <<
     \new Staff { c'1 }
     \new Staff { c'1 }
   >>
 
   \new StaffGroup <<
     \new Staff { c'1 }
     \new Staff { c'1 }
   >>
 >>
@@ skipping 38 matching lines @@
 The following example shows how the
 @code{nonstaff-nonstaff-spacing} property can affect the spacing
 of consecutive non-staff lines.  Here, by setting the
 @code{stretchability} key to a very high value, the lyrics are
 able to stretch much more than usual:
 
 @lilypond[verbatim,quote,staffsize=16]
 \layout {
   \context {
     \Lyrics
-    \override VerticalAxisGroup
-      #'nonstaff-nonstaff-spacing #'stretchability = #1000
+    \override VerticalAxisGroup.nonstaff-nonstaff-spacing.stretchability = #1000
   }
 }
 
 \new StaffGroup
 <<
   \new Staff \with {
-    \override VerticalAxisGroup #'staff-staff-spacing = #'((basic-distance . 30))
+    \override VerticalAxisGroup.staff-staff-spacing = #'((basic-distance . 30))
   } { c'1 }
   \new Lyrics \with {
-    \override VerticalAxisGroup #'staff-affinity = #UP
+    \override VerticalAxisGroup.staff-affinity = #UP
   } \lyricmode { up }
   \new Lyrics \with {
-    \override VerticalAxisGroup #'staff-affinity = #CENTER
+    \override VerticalAxisGroup.staff-affinity = #CENTER
   } \lyricmode { center }
   \new Lyrics \with {
-    \override VerticalAxisGroup #'staff-affinity = #DOWN
+    \override VerticalAxisGroup.staff-affinity = #DOWN
   } \lyricmode { down }
   \new Staff { c'1 }
 >>
 @end lilypond
 
 @seealso
 Installed Files:
 @file{ly/engraver-init.ly},
 @file{scm/define-grobs.scm}.
 
@@ skipping 42 matching lines @@
 When we override @code{NonMusicalPaperColumn}, we use the usual
 @code{\override} command in @code{\context} blocks and in the
 @code{\with} block.  On the other hand, when we override
 @code{NonMusicalPaperColumn} in the middle of note entry,
 use the special @code{\overrideProperty} command.  Here are some
 example @code{NonMusicalPaperColumn} overrides with the special
 @code{\overrideProperty} command:
 
 @example
 \overrideProperty NonMusicalPaperColumn
-  #'line-break-system-details #'((X-offset . 20))
+  line-break-system-details #'((X-offset . 20))
 
 \overrideProperty NonMusicalPaperColumn
-  #'line-break-system-details #'((Y-offset . 40))
+  line-break-system-details #'((Y-offset . 40))
 
 \overrideProperty NonMusicalPaperColumn
-  #'line-break-system-details #'((X-offset . 20)
+  line-break-system-details #'((X-offset . 20)
                                  (Y-offset . 40))
 
 \overrideProperty NonMusicalPaperColumn
-  #'line-break-system-details #'((alignment-distances . (15)))
+  line-break-system-details #'((alignment-distances . (15)))
 
 \overrideProperty NonMusicalPaperColumn
-  #'line-break-system-details #'((X-offset . 20)
+  line-break-system-details #'((X-offset . 20)
                                  (Y-offset . 40)
                                  (alignment-distances . (15)))
 @end example
 
 To understand how each of these different settings work, we begin
 by looking at an example that includes no overrides at all.
 
 @c \book { } is required in these examples to ensure the spacing
 @c overrides can be seen between systems. -np
 
@@ skipping 31 matching lines @@
 attribute of the @code{NonMusicalPaperColumn} grob:
 
 @lilypond[verbatim,quote,staffsize=16]
 \header { tagline = ##f }
 \paper { left-margin = 0\mm }
 \book {
   \score {
     <<
       \new Staff <<
         \new Voice {
-          \overrideProperty #"Score.NonMusicalPaperColumn"
-            #'line-break-system-details #'((Y-offset . 0))
+          \overrideProperty Score.NonMusicalPaperColumn
+            line-break-system-details #'((Y-offset . 0))
           s1*5 \break
-          \overrideProperty #"Score.NonMusicalPaperColumn"
-            #'line-break-system-details #'((Y-offset . 40))
+          \overrideProperty Score.NonMusicalPaperColumn
+            line-break-system-details #'((Y-offset . 40))
           s1*5 \break
-          \overrideProperty #"Score.NonMusicalPaperColumn"
-            #'line-break-system-details #'((Y-offset . 80))
+          \overrideProperty Score.NonMusicalPaperColumn
+            line-break-system-details #'((Y-offset . 80))
           s1*5 \break
         }
         \new Voice { \repeat unfold 15 { c'4 c' c' c' } }
       >>
       \new Staff {
         \repeat unfold 15 { d'4 d' d' d' }
       }
     >>
   }
 }
@@ skipping 10 matching lines @@
 subproperty of @code{line-break-system-details}.
 
 @lilypond[verbatim,quote,staffsize=16]
 \header { tagline = ##f }
 \paper { left-margin = 0\mm }
 \book {
   \score {
     <<
       \new Staff <<
         \new Voice {
-          \overrideProperty #"Score.NonMusicalPaperColumn"
-            #'line-break-system-details #'((Y-offset . 20)
+          \overrideProperty Score.NonMusicalPaperColumn
+            line-break-system-details #'((Y-offset . 20)
                                            (alignment-distances . (15)))
           s1*5 \break
-          \overrideProperty #"Score.NonMusicalPaperColumn"
-            #'line-break-system-details #'((Y-offset . 60)
+          \overrideProperty Score.NonMusicalPaperColumn
+            line-break-system-details #'((Y-offset . 60)
                                            (alignment-distances . (15)))
           s1*5 \break
-          \overrideProperty #"Score.NonMusicalPaperColumn"
-            #'line-break-system-details #'((Y-offset . 100)
+          \overrideProperty Score.NonMusicalPaperColumn
+            line-break-system-details #'((Y-offset . 100)
                                            (alignment-distances . (15)))
           s1*5 \break
         }
         \new Voice { \repeat unfold 15 { c'4 c' c' c' } }
       >>
       \new Staff {
         \repeat unfold 15 { d'4 d' d' d' }
       }
     >>
   }
@@ skipping 11 matching lines @@
 specifies the vertical positioning of staves but not of staff groups.
 
 @lilypond[verbatim,quote,staffsize=16]
 \header { tagline = ##f }
 \paper { left-margin = 0\mm }
 \book {
   \score {
     <<
       \new Staff <<
         \new Voice {
-          \overrideProperty #"Score.NonMusicalPaperColumn"
-            #'line-break-system-details #'((Y-offset . 0)
+          \overrideProperty Score.NonMusicalPaperColumn
+            line-break-system-details #'((Y-offset . 0)
                                            (alignment-distances . (30 10)))
           s1*5 \break
-          \overrideProperty #"Score.NonMusicalPaperColumn"
-            #'line-break-system-details #'((Y-offset . 60)
+          \overrideProperty Score.NonMusicalPaperColumn
+            line-break-system-details #'((Y-offset . 60)
                                            (alignment-distances . (10 10)))
           s1*5 \break
-          \overrideProperty #"Score.NonMusicalPaperColumn"
-            #'line-break-system-details #'((Y-offset . 100)
+          \overrideProperty Score.NonMusicalPaperColumn
+            line-break-system-details #'((Y-offset . 100)
                                            (alignment-distances . (10 30)))
           s1*5 \break
         }
         \new Voice { \repeat unfold 15 { c'4 c' c' c' } }
       >>
       \new StaffGroup <<
         \new Staff { \repeat unfold 15 { d'4 d' d' d' } }
         \new Staff { \repeat unfold 15 { e'4 e' e' e' } }
       >>
     >>
@@ skipping 51 matching lines @@
 @code{outside-staff-priority} (in increasing order).  One by one, LilyPond
 takes the outside-staff objects and places them so that they do
 not collide with any objects that have already been placed.  That
 is, if two outside-staff grobs are competing for the same space, the one
 with the lower @code{outside-staff-priority} will be placed closer to
 the staff.
 
 @lilypond[quote,ragged-right,relative=2,verbatim]
 c4_"Text"\pp
 r2.
-\once \override TextScript #'outside-staff-priority = #1
+\once \override TextScript.outside-staff-priority = #1
 c4_"Text"\pp % this time the text will be closer to the staff
 r2.
 % by setting outside-staff-priority to a non-number,
 % we disable the automatic collision avoidance
-\once \override TextScript #'outside-staff-priority = ##f
-\once \override DynamicLineSpanner #'outside-staff-priority = ##f
+\once \override TextScript.outside-staff-priority = ##f
+\once \override DynamicLineSpanner.outside-staff-priority = ##f
 c4_"Text"\pp % now they will collide
 @end lilypond
 
 The vertical padding between an outside-staff object and the
 previously-positioned grobs can be controlled with
 @code{outside-staff-padding}.
 
 @lilypond[quote,ragged-right,relative=2,verbatim,staffsize=18]
-\once \override TextScript #'outside-staff-padding = #0
+\once \override TextScript.outside-staff-padding = #0
 a'^"This text is placed very close to the note"
-\once \override TextScript #'outside-staff-padding = #3
+\once \override TextScript.outside-staff-padding = #3
 c^"This text is padded away from the previous text"
 c^"This text is placed close to the previous text"
 @end lilypond
 
 
 By default, outside-staff objects are placed only to avoid
 a horizontal collision with previously-positioned grobs.  This
 can lead to situations in which objects are placed very close to each
 other horizontally.  The vertical spacing between staves can
 also be set so that outside staff objects are interleaved.
 Setting @code{outside-staff-horizontal-padding}
 causes an object to be offset vertically so that such a situation
 doesn't occur.
 
 @lilypond[quote,ragged-right,relative=2,verbatim]
 % the markup is too close to the following note
 c4^"Text"
 c4
 c''2
 % setting outside-staff-horizontal-padding fixes this
 R1
-\once \override TextScript #'outside-staff-horizontal-padding = #1
+\once \override TextScript.outside-staff-horizontal-padding = #1
 c,,4^"Text"
 c4
 c''2
 @end lilypond
 
 @seealso
 Snippets:
 @rlsr{Spacing}.
 
 
@@ skipping 84 matching lines @@
 @rinternals{Voice} context.  The @code{StaffSpacing} object
 (generated in @rinternals{Staff} context) contains the same
 property for controlling the stem/bar line spacing.  The following
 example shows these corrections, once with default settings, and
 once with exaggerated corrections:
 
 @lilypond[quote,ragged-right]
 {
   c'4 e''4 e'4 b'4 |
   b'4 e''4 b'4 e''4 |
-  \override Staff.NoteSpacing #'stem-spacing-correction = #1.5
-  \override Staff.StaffSpacing #'stem-spacing-correction = #1.5
+  \override Staff.NoteSpacing.stem-spacing-correction = #1.5
+  \override Staff.StaffSpacing.stem-spacing-correction = #1.5
   c'4 e''4 e'4 b'4 |
   b'4 e''4 b'4 e''4 |
 }
 @end lilypond
 
 Proportional notation is supported; see @ref{Proportional notation}.
 
 @seealso
 Essay on automated music engraving:
 @ressay{Optical spacing}.
 
 Snippets:
 @rlsr{Spacing}.
 
 Internals Reference:
 @rinternals{SpacingSpanner},
 @rinternals{NoteSpacing},
 @rinternals{StaffSpacing},
 @rinternals{NonMusicalPaperColumn}.
 
 @knownissues
 There is no convenient mechanism to manually override spacing.  The
 following work-around may be used to insert extra space into a score,
 adjusting the padding value as necessary.
 
 @example
- \override Score.NonMusicalPaperColumn #'padding = #10
+ \override Score.NonMusicalPaperColumn.padding = #10
 @end example
 
 No work-around exists for decreasing the amount of space.
 
 
 @node New spacing area
 @subsection New spacing area
 
 New sections with different spacing parameters can be started with
 @code{newSpacingSection}.  This is useful when there are
@@ skipping 50 matching lines @@
 \score {
   \relative c'' {
     g4 e e2 | f4 d d2 | c4 d e f | g4 g g2 |
     g4 e e2 | f4 d d2 | c4 e g g | c,1 |
     d4 d d d | d4 e f2 | e4 e e e | e4 f g2 |
     g4 e e2 | f4 d d2 | c4 e g g | c,1 |
   }
   \layout {
     \context {
       \Score
-      \override SpacingSpanner
-        #'base-shortest-duration = #(ly:make-moment 1 16)
+      \override SpacingSpanner.base-shortest-duration = #(ly:make-moment 1 16)
     }
   }
 }
 @end lilypond
 
 
 @snippets
 
 By default, spacing in tuplets depends on various non-duration
 factors (such as accidentals, clef changes, etc).  To disregard
@@ skipping 13 matching lines @@
     \new Staff {
       c8 c8 c8 c8
       \times 4/5 {
         c8 c8 c8 c8 c8
       }
     }
   >>
   \layout {
     \context {
       \Score
-      \override SpacingSpanner #'uniform-stretching = ##t
+      \override SpacingSpanner.uniform-stretching = ##t
     }
   }
 }
 @end lilypond
 
 When @code{strict-note-spacing} is set, notes are spaced without
 regard for clefs, bar lines, and grace notes,
 
 @lilypond[quote,ragged-right,relative=2,verbatim]
-\override Score.SpacingSpanner #'strict-note-spacing = ##t
+\override Score.SpacingSpanner.strict-note-spacing = ##t
 \new Staff { c8[ c \clef alto c \grace { c16[ c] } c8 c c]  c32[ c32] }
 @end lilypond
 
 @seealso
 Snippets:
 @rlsr{Spacing}.
 
 
 @node Line length
 @subsection Line length
@@ skipping 60 matching lines @@
 of timelines or other graphics directly in the score.
 
 LilyPond supports five different settings for proportional notation,
 which may be used together or alone:
 
 @itemize
 @item @code{proportionalNotationDuration}
 @item @code{uniform-stretching}
 @item @code{strict-note-spacing}
 @item @code{\remove "Separating_line_group_engraver"}
-@item @code{\override PaperColumn #'used = ##t}
+@item @code{\override PaperColumn.used = ##t}
 @end itemize
 
 In the examples that follow, we explore these five different
 proportional notation settings and examine how these settings interact.
 
 We start with the following one-measure example, which uses classical
 spacing with ragged-right turned on.
 
 @lilypond[quote,verbatim,ragged-right]
 \score {
@@ skipping 208 matching lines @@
     \new RhythmicStaff {
       \times 8/9 {
         c'8 c'8 c'8 c'8 c'8 c'8 c'8 c'8 c'8
       }
     }
   >>
   \layout {
     \context {
       \Score
       proportionalNotationDuration = #(ly:make-moment 1 20)
-      \override SpacingSpanner #'uniform-stretching = ##t
+      \override SpacingSpanner.uniform-stretching = ##t
     }
   }
 }
 @end lilypond
 
 Our two-staff example now spaces exactly, our rhythmic
 relationships are visually clear, and we can include a measured
 timeline or graphic if we want.
 
 Note that the LilyPond's proportional notation package expects
@@ skipping 78 matching lines @@
   c''8
   c''8
   c''8
   \clef alto
   d'8
   d'2
 }
 
 \new Staff {
   \set Score.proportionalNotationDuration = #(ly:make-moment 1 16)
-  \override Score.SpacingSpanner #'strict-note-spacing = ##t
+  \override Score.SpacingSpanner.strict-note-spacing = ##t
   c''8
   c''8
   c''8
   \clef alto
   d'8
   d'2
 }
 @end lilypond
 
 Both scores are proportional, but the spacing in the first score
 is too loose because of the clef change.  The spacing of the second
 score remains strict, however, because strict-note-spacing is
 turned on.  Turning on strict-note-spacing causes the width of
 time signatures, key signatures, clefs and accidentals to play no
 part in the spacing algorithm.
 
 In addition to the settings given here, there are other settings
 that frequently appear in proportional scores.  These include:
 
 @itemize
-@item @code{\override SpacingSpanner #'strict-grace-spacing = ##t}
+@item @code{\override SpacingSpanner.strict-grace-spacing = ##t}
 @item @code{tupletFullLength = ##t}
-@item @code{\override Beam #'breakable = ##t}
-@item @code{\override Glissando #'breakable = ##t}
-@item @code{\override TextSpanner #'breakable = ##t}
+@item @code{\override Beam.breakable = ##t}
+@item @code{\override Glissando.breakable = ##t}
+@item @code{\override TextSpanner.breakable = ##t}
 @item @code{\remove "Forbid_line_break_engraver" in the Voice context}
 @end itemize
 
 These settings space grace notes strictly, extend tuplet brackets to
 mark both rhythmic start- and stop-points, and allow spanning elements
 to break across systems and pages.  See the respective parts of the manual
 for these related settings.
 
 @seealso
 Notation Reference:
@@ skipping 129 matching lines @@
 @item
 Avoid (or reduce) objects that increase the vertical size of a
 system.  For example, volta repeats (or alternate repeats) require
 extra space.  If these repeats are spread over two systems, they
 will take up more space than one system with the volta repeats and
 another system without.  For example, dynamics that @q{stick out} of
 a system can be moved closer to the staff:
 
 @lilypond[verbatim,quote,relative=1]
 e4 c g\f c
-e4 c g-\tweak #'X-offset #-2.7 -\tweak #'Y-offset #2.5 \f c
+e4 c g-\tweak X-offset #-2.7 -\tweak Y-offset #2.5 \f c
 @end lilypond
 
 @item
 Alter the horizontal spacing via @code{SpacingSpanner}.  For more
 details, see @ref{Changing horizontal spacing}.  The following
 example illustrates the default spacing:
 
 @lilypond[verbatim,quote]
 \score {
   \relative c'' {
@@ skipping 17 matching lines @@
   \relative c'' {
     g4 e e2 |
     f4 d d2 |
     c4 d e f |
     g4 g g2 |
     g4 e e2 |
   }
   \layout {
     \context {
       \Score
-      \override SpacingSpanner
-        #'common-shortest-duration = #(ly:make-moment 1 2)
+      \override SpacingSpanner.common-shortest-duration = #(ly:make-moment 1 2)
     }
   }
 }
 @end lilypond
 
 @noindent
 The @code{common-shortest-duration} property cannot be modified
 dynamically, so it must always be placed in a @code{\context}
 block so that it applies to the whole score.
 
 @end itemize
 
 @seealso
 Notation Reference:
 @ref{Page layout},
 @ref{Changing horizontal spacing}.
 
 Snippets:
 @rlsr{Spacing}.