Re: chord slides

[Trevor Daniels]

Patrick Schmidt wrote Monday, August 03, 2009 9:24 AM
Subject: Re: chord slides


> thank you very much for your solution. I managed to achieve what I 
> wanted without fully understanding of what's going on. Here's the 
> code:
>
> \version "2.13.3"
> \relative c' {
> \new Staff  <<
>   \new Voice = "visible" {
>     e,16[ e
>     \once \override Glissando #'minimum-length = #5
>     \once \override Glissando #'springs-and-rods = 
> #ly:spanner::set-spacing-rods
>     \once \override Glissando #'thickness = #2
>     % glissando is attached to b' & c'
>     <e' b' e>\glissando <f c' f>]
>   }
>   \new Voice = "hidden1" {
>     s s
>     \hideNotes
>     % attach glissando to note heads
>     \once \override Glissando #'thickness = #2
>     e\glissando f
>   }
>   \new Voice = "hidden2" {
>     s s
>     \hideNotes
>     % attach glissando to note heads
>     \once \override Glissando #'thickness = #2
>     b\glissando c
>   }
> >>
> }
>
> As you told me I added another hidden voice.
> It confuses me that the second hidden voice
> ("hidden2") has to come last even though it's
> a middle voice. If I place "hidden2" before
> "hidden1" then I don't get a glissando from
> e1 to f1.

You can see why if you comment out the \hideNotes
so the notes are visible - the notes of "hidden1"
are in the wrong octave if you place "hidden2"
before "hidden1".  You just need to add a comma.
This works:

\version "2.13.3"
\relative c' {
\new Staff  <<
  \new Voice = "visible" {
    e,16[ e
    \once \override Glissando #'minimum-length = #5
    \once \override Glissando #'springs-and-rods = 
#ly:spanner::set-spacing-rods
    \once \override Glissando #'thickness = #2
    % glissando is attached to b' & c'
    <e' b' e>\glissando <f c' f>]
  }
  \new Voice = "hidden2" {
    s s
    \hideNotes
    % attach glissando to note heads
    \once \override Glissando #'thickness = #2
    b\glissando c
  }
  \new Voice = "hidden1" {
    s s
    \hideNotes
    % attach glissando to note heads
    \once \override Glissando #'thickness = #2
    e,\glissando f  %****** comma added here
  }
>>
}

Trevor