%% Generated by lilypond-book.py
%% Options: [alt=[image of music],printfilename,indent=0\mm,texidoc,line-width=160\mm]
\include "lilypond-book-preamble.ly"







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\paper {
  #(define dump-extents #t)
  
  indent = 0\mm
  line-width = 160\mm
  force-assignment = #""
  line-width = #(- line-width (* mm  3.000000))
}

\layout {
  
}



% ****************************************************************
% ly snippet:
% ****************************************************************
\sourcefilename "engraver-one-by-one.ly"
\sourcefileline 0

\version "2.10.0"
\header {
  
  texidoc = "The notation problem, creating a certain symbol,
    is handled by plugins. Each plugin is called Engraver. In this example,
engravers are switched on one by one, in the following order:

@itemize
@item note heads,
@item staff symbol,
@item clef,
@item stem,
@item beams, slurs, accents,
@item accidentals, bar lines, time signature, and key signature.
@end itemize

Engravers are grouped. For example, note heads, slurs, beams etc. form
a Voice context. Engravers for key, accidental, bar, etc. form a
Staff context.

"

}
\layout { ragged-right = ##t }

\include "engraver-example.ily"


%
% setup for Request->Element conversion. Guru-only
%

MyStaff =\context {
  \type "Engraver_group"
  \name Staff

  \description "Handles clefs, bar lines, keys, accidentals.  It can contain
@code{Voice} contexts."

  
  \consists "Output_property_engraver"	
  
  \consists "Font_size_engraver"

  \consists "Volta_engraver"
  \consists "Separating_line_group_engraver"	
  \consists "Dot_column_engraver"

  \consists "Ottava_spanner_engraver"
  \consists "Rest_collision_engraver"
  \consists "Piano_pedal_engraver"
  \consists "Piano_pedal_align_engraver"
  \consists "Instrument_name_engraver"
  \consists "Grob_pq_engraver"
  \consists "Forbid_line_break_engraver"
  \consists "Axis_group_engraver"

  \consists "Pitch_squash_engraver"

  \override VerticalAxisGroup #'minimum-Y-extent = #'(-6 . 6)
  extraVerticalExtent = ##f
  verticalExtent = ##f 
  localKeySignature = #'()

				% explicitly set instrument, so we don't get 
				% weird effects when doing instrument names for
				% piano staves

  instrumentName = #'()
  shortInstrumentName = #'()
  
  \accepts "Voice"
}


MyVoice = \context {
  \type "Engraver_group"
  \name Voice

  \description "
    Corresponds to a voice on a staff.  This context handles the
    conversion of dynamic signs, stems, beams, super- and subscripts,
    slurs, ties, and rests.

    You have to instantiate this explicitly if you want to have
    multiple voices on the same staff."

  localKeySignature = #'()
  \consists "Font_size_engraver"
  
				% must come before all
  \consists "Output_property_engraver"	
  \consists "Arpeggio_engraver"
  \consists "Multi_measure_rest_engraver"
  \consists "Text_spanner_engraver"
  \consists "Grob_pq_engraver"
  \consists "Note_head_line_engraver"
  \consists "Glissando_engraver"
  \consists "Ligature_bracket_engraver"
  \consists "Breathing_sign_engraver"
				% \consists "Rest_engraver"
  \consists "Grace_beam_engraver"
  \consists "New_fingering_engraver"
  \consists "Chord_tremolo_engraver"
  \consists "Percent_repeat_engraver"
  \consists "Slash_repeat_engraver"
  \consists "Melisma_translator"

%{
  Must come before text_engraver, but after note_column engraver.

%}
  \consists "Text_engraver"
  \consists "Dynamic_engraver"
  \consists "Fingering_engraver"

  \consists "Script_column_engraver"
  \consists "Rhythmic_column_engraver"
  \consists "Cluster_spanner_engraver"
  \consists "Tie_engraver"
  \consists "Tie_engraver"
  \consists "Tuplet_engraver"
  \consists "Note_heads_engraver"
  \consists "Rest_engraver"

  \consists "Skip_event_swallow_translator"
}


\score {
  \topVoice
  \layout {
    \context { \MyStaff }
    \context { \MyVoice }
  }
}


MyStaff = \context {
    \MyStaff
    \consists "Staff_symbol_engraver"
}

\score {
  \topVoice
  \layout {
      \context { \MyStaff }
      \context { \MyVoice }
            }
}

MyStaff = \context {
    \MyStaff
    \consists "Clef_engraver"
    \remove "Pitch_squash_engraver"
}

\score {
  \topVoice
  \layout {
    \context { \MyStaff }
    \context { \MyVoice }
  }
}

MyVoice = \context {
  \MyVoice
  \consists "Stem_engraver"
}

\score {
  \topVoice
  \layout {
    \context { \MyStaff }
    \context { \MyVoice }
  }
}

MyVoice = \context {
  \MyVoice
  \consists "Beam_engraver"
}

\score {
  \topVoice
  \layout {
    \context { \MyStaff }
    \context { \MyVoice }
  }
}

MyVoice= \context {
  \MyVoice
  \consists "Phrasing_slur_engraver"
  \consists "Slur_engraver"
  \consists "Script_engraver"
}


\score {
  \topVoice
  \layout {
    \context { \MyStaff }
    \context { \MyVoice }
  }
}

MyStaff = \context {
  \MyStaff
  \consists "Bar_engraver"
  \consists "Time_signature_engraver"
}

\score {
  \topVoice
  \layout {
    \context { \MyStaff }
    \context { \MyVoice }
  }
}

MyStaff = \context {
  \MyStaff
  \consists "Accidental_engraver"    
  \consists "Key_engraver"
}
\score {
  \topVoice
  \layout {
    \context { \MyStaff }
    \context { \MyVoice }
  }
}



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% end ly snippet
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