never seen barring indications below staff

[Eluze]

I wonder why in
http://www.lilypond.org/doc/v2.17/Documentation/notation/guitar#indicating-position-and-barring
LilyPond shows the indication /below/ the staff - I've never seen that
before.

in the same snippet the text spanner line looks quite loose and ends above
the center of the last spanned note - maybe the TextSpanner default settings
are good for "normal" texts, but in the case of barring spanners I would
prefer a tighter line with a distinct ending mark:

[see attachment]  barring.png
<http://lilypond.1069038.n5.nabble.com/file/n138311/dampened-notes.png>  

\relative c {
  \clef "treble_8"
  b16 d g b e
  \once \override TextSpanner.bound-details.left.text = \markup {"XII"
\hspace #.4 }
  \once \override TextSpanner.bound-details.right.text) = \markup {
\draw-line #'(0 . -.5) }
  \once \override TextSpanner.bound-details.right.padding) = #-.65
  \once \override TextSpanner.dash-fraction = #.4
  \once \override TextSpanner.dash-period = #1.3
  g16 \startTextSpan
  b16 e g e b g \stopTextSpan
  e16 b g d
}

what do you think?!
Eluze



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