Re: Glissando on single note in chords

[address@hidden]

On Nov 1, 2011, at 10:59 AM, Nick Payne wrote:

> On 01/11/11 20:37, address@hidden wrote:
>> On Nov 1, 2011, at 8:31 AM, Nick Payne wrote:
>> 
>>> The behaviour seems to have changed - with 2.15.16 I now get a glissando 
>>> between each note. However, I'm using glissandi to indicate a fingering 
>>> slide along the same string, and only want the glissando against this one 
>>> note. I could previously do it by making this note the first in both 
>>> chords. Is this still possible, or do I need to create a separate hidden 
>>> voice containing only the wanted notes?
>>> 
>>> Nick
>>> 
>> Hey Nick,
>> 
>> The answer is yes.  Could you please send a minimal example - it'd be easier 
>> for me to explain how it works through .ly text.
>> 
>> Cheers,
>> MS
>> 
>> 
> Thanks. Here's a minimal example. I only want a glissando between the 
> fingering on the F# and G.
> 
> \version "2.15.16"
> 
> \relative c {
>    \set fingeringOrientations = #'(down)
>    \override Fingering #'staff-padding = #'()
>    \once \override Glissando #'extra-offset = #'(0 . -1.4)
> <fis-1 d'>4\glissando <g-1 d'>
> }
> 
> Nick
> 

Hey Nick,

Here's what you'll need:

\version "2.15.16"

\relative c {
   \set fingeringOrientations = #'(down)
   \override Fingering #'staff-padding = #'()
   \once \override Glissando #'extra-offset = #'(0 . -1.4)
   \set glissandoMap = #'((0 . 0))
  <fis-1 d'>4\glissando <g-1 d'>
}

The glissandoMap property is a switchboard operator that says who plugs into 
who.
Here, the 0th (lowest) note plugs into the 0th note.
If you get a chance, try implementing a Scheme engraver - this type of override 
can wreak panic with spacing changes in LilyPond, whereas a custom engraver 
will survive changes in spacing.

Cheers,
MS