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Re: \omit-ing a specific type of Script [globally or via edition-engrave

From: Lukas-Fabian Moser
Subject: Re: \omit-ing a specific type of Script [globally or via edition-engraver]
Date: Sun, 26 Dec 2021 17:13:06 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0

Hi Kieren,

Am 26.12.21 um 16:48 schrieb Kieren MacMillan:
Hi all,


\version "2.21"
{ \omit Script c''1^\fermata_\espressivo }

obviously both Script grobs will be omitted; same, of course, with

\version "2.21"
\layout { \context { \Score \omit Script } }
{ c''1^\fermata_\espressivo }

Is there a way (e.g., via callback or improved \omit function definition) to 
make \omit more surgical? For example, can one effectively say

     \omit #'(fermata) Script

so that only fermatas get omitted?

Perhaps something like:

\version "2.22"

omitScriptTypes =
#(define-music-function (types) (list?)
   (let ((stencil
          (lambda (grob)
            (if (member (ly:event-property
                         (ly:grob-property grob 'cause)
       \override Script.stencil = #stencil

  \omitScriptTypes #'("fermata")
  a'2\fermata a\tenuto
  \omitScriptTypes #'("tenuto")
  a'\fermata a\tenuto
  \omitScriptTypes #'("fermata" "tenuto")
  a'\fermata a\tenuto
  \omitScriptTypes #'()
  a'\fermata a\tenuto

The more general syntax you suggested - making "Script" one of various possibilities - does not convince me, as the type of a script is in a special property ('articulation-type) that won't be of much use for other grob types, I expect.


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