mpdolce - LilyPond

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Chapter 3: Fundamental concepts 64 > � � �� As another example, if clefOctavation is set in the Score context this immediately changes the value of the octavation in all current staves and sets a new default value which will be applied to all staves. The opposite command, \unset, effectively removes the property from the context, which causes most properties to revert to their default value. Usually \unset is not required as a new \set command will achieve what is wanted. The \set and \unset commands can appear anywhere in the input file and will take effect from the time they are encountered until the end of the score or until the property is \set or \unset again. Let’s try changing the font size, which affects the size of the note heads (among other things) several times. The change is from the default value, not the most recently set value. c4 % make note heads smaller \set fontSize = #-4 d e % make note heads larger \set fontSize = #2.5 f g % return to default size \unset fontSize a b � � � � � � � � � We have now seen how to set the values of several different types of property. Note that integers and numbers are always preceded by a hash sign, #, while a true or false value is specified by ##t and ##f, with two hash signs. A text property should be enclosed in double quotation signs, as above, although we shall see later that text can actually be specified in a much more general way by using the very powerful markup command.
Chapter 3: Fundamental concepts 65 Setting context properties with \with Context properties may also be set at the time the context is created. Sometimes this is a clearer way of specifying a property value if it is to remain fixed for the duration of the context. When a context is created with a \new command it may be followed immediately by a \with { .. } block in which the property values are set. For example, if we wish to suppress the printing of extra naturals for the duration of a staff we would write: like this: \new Staff \with { extraNatural = ##f } > � �� Properties set in this way may still be changed dynamically using \set and returned to their default value with \unset. The fontSize property is treated differently. If this is set in a \with clause it effectively resets the default value of the font size. If it is later changed with \set, this new default value may be restored with the \unset fontSize command. Setting context properties with \context The values of context properties may be set in all contexts of a particular type, such as all Staff contexts, with a single command. The context type is identified by using its type name, like Staff, prefixed by a back-slash: \Staff. The statement which sets the property value is the same as that in a \with block, introduced above. It is placed in a \context block within a \layout block. Each \context block will affect all contexts of the type specified throughout the \score or \book block in which the \layout block appears. Here is a example to show the format: \score { \new Staff { \relative c'' { cis4 e d ces } } \layout { \context { \Staff extraNatural = ##t
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LilyPond Learning Manual The LilyPo
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3 Fundamental concepts . . . . . .
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Preface 1 Preface It must have been
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Chapter 1: Introduction 3 � �
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Chapter 1: Introduction 5 How can w
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Chapter 1: Introduction 7 This expr
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Chapter 1: Introduction 9 About the
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Chapter 2: Tutorial 11 2 Tutorial T
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Chapter 4: Tweaking output 121 } g2
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Chapter 4: Tweaking output 123 } c4
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Chapter 4: Tweaking output 127 } \n
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Chapter 4: Tweaking output 129 \ove
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Appendix A: Templates 141 Appendix
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Appendix A: Templates 143 A.1.4 Not
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Appendix A: Templates 145 } \key c
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Appendix A: Templates 147 } dynamic
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Appendix A: Templates 149 cello = \
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Appendix A: Templates 151 %{ Uncomm
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Appendix A: Templates 153 } \new St
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Appendix A: Templates 155 } \new Vo
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Appendix A: Templates 157 } \score
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Appendix A: Templates 159 discantus
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Appendix A: Templates 161 bassusNot
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Appendix A: Templates 163 3 � �
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Appendix A: Templates 165 global =
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Appendix A: Templates 167 \voiceOne
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Appendix A: Templates 169 } >> \lay
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Appendix A: Templates 171 \begin{li
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Appendix B: Scheme tutorial 173 App
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Appendix B: Scheme tutorial 175 TOD
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Appendix C: GNU Free Documentation
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Appendix D: LilyPond index 183 \sto
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Appendix D: LilyPond index 185 H ha
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Appendix D: LilyPond index 187 rest
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mpdolce - LilyPond

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