Glissando without a final note too long

Question

I've tried different methods to have a glissando without a final note. The problem is that the glissando sign is too long whatever the hidden note is. I need a short glissando sign. Is that possible?

Here is a minimal code:

\version "2.22.1"
\language "english"

\header {
  % Remove default LilyPond tagline
  tagline = ##f
}

\layout {
  \context {
    \Score
    \remove "Bar_number_engraver"
  }
}

global = {
\key gf \major
  \override Glissando.style = #'trill
  \hide Staff.BarLine
}
\relative c' {
\global 
ef8 ef4 f8 f4 ef8 f8
gf2 \glissando
af2. \glissando
gf4.. gf16
gf2. \glissando \hideNotes d16 \unHideNotes
\bar "||"
}

Answer 1

It's hard to know what you are trying to achieve without some kind of image/drawing.

I guess that you want the final note to take up no metrical time in the bar, if so you probably want to use a hidden grace note:

    \afterGrace gf2\glissando { \hideNotes af8 \unHideNotes }

Update

Now that you have posted the code that you are working with, it seems like there is a problem with the timing translator. I think you should be using a cadenza instead of just hiding the bar lines.

Try something like this:

    \cadenzaOn
    ef8 ef4 f8 f4 ef8 f8
    \afterGrace gf2\glissando { \hideNotes af8 \unHideNotes }
    \afterGrace af2.\glissando { \hideNotes gf8 \unHideNotes }
    gf4.. gf16
    \afterGrace gf2.\glissando { \hideNotes d8 \unHideNotes }

Answer 2

Add a note in a hidden voice to anchor the end of the gliss.