+ texidoces = "
+Las instrucciones @code{\\startTextSpan} y @code{\\stopTextSpan}
+permiten la creación de elementos de extensión textuales tan
+fácilmente como indicaciones de pedal u
+octavaciones. Sobreescribimos ciertas propiedades del objeto
+@code{TextSpanner} para modificar su salida.
+
+"
+ doctitlees = "Crear elementos de extensión textuales"
+
+ texidoc = "
+The @code{\\startTextSpan} and @code{\\stopTextSpan} commands allow the
+creation of text spanners as easily as pedal indications or
+octavations. Override some properties of the @code{TextSpanner} object
+to modify its output.
+
+"
+ doctitle = "Creating text spanners"
+} % begin verbatim
+
+\paper { ragged-right = ##f }
+
+\relative c'' {
+ \override TextSpanner #'(bound-details left text) = #"bla"
+ \override TextSpanner #'(bound-details right text) = #"blu"
+ a4 \startTextSpan
+ b4 c
+ a4 \stopTextSpan
+
+ \override TextSpanner #'style = #'line
+ \once \override TextSpanner
+ #'(bound-details left stencil-align-dir-y) = #CENTER
+ a4 \startTextSpan
+ b4 c
+ a4 \stopTextSpan
+
+ \override TextSpanner #'style = #'dashed-line
+ \override TextSpanner #'(bound-details left text) =
+ \markup { \draw-line #'(0 . 1) }
+ \override TextSpanner #'(bound-details right text) =
+ \markup { \draw-line #'(0 . -2) }
+ \once \override TextSpanner #'(bound-details right padding) = #-2
+
+ a4 \startTextSpan
+ b4 c
+ a4 \stopTextSpan
+
+ \set Staff.middleCPosition = #-13
+ \override TextSpanner #'dash-period = #10
+ \override TextSpanner #'dash-fraction = #0.5
+ \override TextSpanner #'thickness = #10
+ a4 \startTextSpan
+ b4 c
+ a4 \stopTextSpan
+}