Open glissando

[Sandro Santilli]

I'm trying to emulate the output in the attached image, but failing to
do so. It is basically a glissando to an unspecified note (hidden?)
during an otherwise rest period of time.

What I tried:


    \once \override Glissando #'style = #'zigzag
    e4
    \glissando
    r4 r2 

But the glissando symbol does NOT come out.
It would if I replaced the first r4 with an actual note,
but I still do want the rest printed...

--strk;

openglissando.png
Description: PNG image