Try engrave this ly code:
\version "2.20.0"
>
> \header {
> title = \markup \column {
> \line { "Minuet" }
> \line { "" }
> \line { "" }
> }
> subtitle = "A study in accent and in the correct timing of half beats"
> }
>
{s}
By lilypond v2.20.0:
[image: image.png]
By lilypond v2.21.7:
[image: image.png]
Sometimes a ly code converted from music sheet software (like Finale), and
their composers prone to typeset casually like this. It's better to
keep accordance with the original appearance.
And I noticed that in SVG results of the new version, every individual
element was wrapped by a <g>, what's the design intention? Something will
transform double times?