Thank you David for this lesson, I appreciate it a lot.
Thomas
> Am 16.02.2022 um 18:50 schrieb David Kastrup <d...@gnu.org>:
>
> Thomas Scharkowski <t.scharkow...@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
