Re: Possible bug: Grace note at the beginning makes instrumentName disappear?

[David Kastrup]

Thomas Scharkowski <t.scharkowski@t-online.de> writes:

> Grace note at the beginning makes instrumentName disappear:
> macOs 12.1
> LilyPond 2.23.6
>
> --
> \version "2.23.6"
>
> GraceVoice =  \new Voice
> {
>   \grace 
>   c'8  b4
> }
>
> GraceStaff = \new Staff 
> <<
>   \set Staff.instrumentName = "Grace"
>   \GraceVoice
>>>
>
> \score {
>   \GraceStaff
> }
>
> NoGraceVoice = \new Voice 
> {
>   b4
> }
>
> NoGraceStaff = \new Staff 
> <<
>   \set Staff.instrumentName = "NoGrace"
>   \NoGraceVoice
>>>
>
> \score {
>   \NoGraceStaff
> }
>

No, it doesn't.  \grace c'8 occurs before the beat, \set
Staff.instrumentName occurs on the beat and consequently has no effect
on the already created Staff.

You probably want to write

\new Staff \with { instrumentName = ... } ...

in order to have instrumentName exist from the beginning of the
context's life-time rather than from its first beat (which may be later
in the case of grace notes).

-- 
David Kastrup