Okay, with a little tinkering I got the result I was looking for. Just
going to send it out so anyone looking for this solution in the future
has something to refer to!
```
LetteredMeasureNumber =
#(define-music-function
(target-measure letter)
(number? markup?)
#{
% 1) Force currentBarNumber to the desired number.
\once \set Score.currentBarNumber = #target-measure
% 2) Override the bar-number stencil once
\once \override Score.BarNumber.stencil =
#(lambda (grob)
(let* ((text (ly:grob-property grob 'text))
(m-num (ly:grob-property grob 'measure-number)))
(grob-interpret-markup
grob
#{ \markup \concat { #text #letter } #})))
#})
```
------ Original Message ------
From "Kieren MacMillan" <kie...@kierenmacmillan.info>
To "Steph Phillips" <stephbotco...@gmail.com>
Cc "Lilypond-User Mailing List" <lilypond-user@gnu.org>
Date 12/24/2024 6:14:50 AM
Subject Re: Bar Numbers With Letters
Hi Steph,
Here’s a start on doing it directly:
%%% SNIPPET BEGINS
\version "2.23.82"
music = \relative c' {
\set Score.currentBarNumber = #46
\override Score.BarNumber.break-visibility = ##(#t #t #t)
c4 d e f
c4 d e f |
\set Score.currentBarNumber = #48
c4 d e f |
\temporary \override Score.BarNumber.stencil =
#(lambda (grob)
(let ((text (ly:grob-property grob 'text)))
(grob-interpret-markup grob
#{ \markup \concat { #text "A" } #})))
\set Score.currentBarNumber = #48
c4 d e f
\set Score.currentBarNumber = #48
c4 d e f
\set Score.currentBarNumber = #48
c4 d e f
\revert Score.BarNumber.stencil
c4 d e f
c1 \bar "|."
}
{ \music }
%%% SNIPPET ENDS
Obviously you’ll want to figure out how to get the letters to increment while
the numbers aren’t incrementing, and wrap it all in a music function so you can
simply write
%%% SNIPPET BEGINS
\version "2.23.82"
alternativeBarNumbers = …
music = \relative c' {
[…]
c4 d e f
\alternativeBarNumbers
c4 d e f
c4 d e f
c4 d e f
\undo \alternativeBarNumbers
c4 d e f
c1 \bar "|."
}
{ \music }
%%% SNIPPET ENDS
or similar.
Hope that helps!
Kieren.
On Dec 24, 2024, at 7:50 AM, Kieren MacMillan <kie...@kierenmacmillan.info>
wrote:
Hi Steph,
I'm looking for how to set some bar numbers in my score to have letters.
For example:
46, 47, 48, 48A, 48B, 48C, 49, etc...
I've been looking at the documentation and I see how to achieve this for
\repeat'ed bars, but this is just sequential music and so the example in the
documentation doesn't really apply here.
Well, you could always abuse repeats… ;)
%%% SNIPPET BEGINS
\version "2.23.82"
music = \relative c' {
\override Score.BarNumber.break-visibility = ##(#t #t #t)
\set Score.alternativeNumberingStyle = #'numbers-with-letters
\set Score.currentBarNumber = #46
c4 d e f |
c4 d e f
%% temporarily suppress VoltaBracket
\temporary \omit Score.VoltaBracket
\repeat volta 4 {
%% override the default repeat-begin barline
\bar "|"
%% here’s the un-lettered measure
c4 d e f |
%% rewind bar number!
\set Score.currentBarNumber = #48
%% abuse alternatives to generate lettered measures
\alternative {
\volta 1 { c4 d e f \bar "|" }
\volta 2 { d4 e f g \bar "|" }
\volta 3 { e4 f g a \bar "|" }
}}
%% reset so subsequent repeats display as expected
\undo \omit Score.VoltaBracket
c1 \bar "|."
}
{ \music }
%%% SNIPPET ENDS
I’m sure there’s a way by just overriding regular measure numbers — I just
wanted to see if I could do it this way! LOL
Hope that helps,
Kieren.
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