Phil Holmes <mail <at> philholmes.net> writes:
Can anyone explain what's going on here?
\score {
\new MensuralStaff {
\layout {
\context {
\Score
\override SpacingSpanner #'spacing-increment = #0
\remove "Default_bar_line_engraver"
}}}
The "Default_bar_line_engraver" works oddly, in that it turns bar lines
on and off. Without it, when you say \bar"|" in the music, you start
getting barlines after every note, and a double barline after every
measure. We don't see them because the MensuralStaff sets barlines
to be invisible.
\override SpacingSpanner #'spacing-increment = #0.0
asks for zero space between notes, but there is no ragged-right,
so LilyPond tries to stretch out the lines, and the space between
barlines is the only space that can stretch.
The barlines use a different setting for spacing
\override BarLine #'space-alist #'first-note = #'( fixed-space . 0.0)
for historical reasons, and unfortunately.
If you don't have measures, maybe leave "Default_bar_line_engraver"
in place, and just stop the measure-counting with
\context {\Score timing = ##f }
and put \bar"" wherever a break would be allowable.