Re: trnasparent stem function

[Mats Bengtsson]

There's no need for a music function here, why not simply do

stemLess = \once \override Voice.Stem #'transparent = ##t

Also, since you use \once in the previous definition, there's no need 
to do a revert later.

  /Mats

Quoting Jean-marc LEGRAND <address@hidden>:

> Hi list !
>
> Using 2.9 on XP.
>
> I'm beginning to engrave Marais' Viol suites (since I've understood 
> eps files inclusion...).
>
> I'm stuck with this : in the fac simile, inside notes of a chord are 
> stemless. So I have to get
> something like
> <<{a4} \\ {<c e> % without stem} \\ {a}>>
>
> So I've decided to get in function construction, and I've tried this 
> for a simple piece of music :
>
> \version "2.9"
> stemLess = #(define-music-function (parser location note) (ly:music?)
>       #{\once \override Voice.Stem #'transparent = ##t       #})
>
> stemFull = #(define-music-function (parser location note) (ly:music?)
>       #{\revert  Voice.Stem #'transparent  #})
>
> \score {
>      \relative c'' {
>            c4 \stemLess c c \stemFull c
>            }
>      }
>
> I get
> -  the first c with a stem (ok)
> - the second one ithout stem (ok)
> - no more music after that : not OK at all.
>
> I think I'm making a mistake with my function, since it's the first 
> aof my entire life !
>
> Does anyone know where it is ?
>
> Best regards !
>
> JMarc
>
>
>
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