Hello Fred, > Does LilyPond use the concept of a baseline?
in fact in some sense Lilypond is doing exactly that. The distance between two
Lyrics
contexts is goverened by
VerticalAxisGroup.nonstaff-nonstaff-spacing
of the upper context. Thi spacing itself is an alist of
#'((basic-distance . [distance in staff spaces])
(minimum-distance . [distance in staff spaces])
(padding . [distance in staff spaces])
(stretchability . [value]))
This models a flexible spacing from 0-line to 0 line of the particular context.
Here you have
a `basic-distance` (e.g. the default distance this would take), a
`minimum-distance` (the
maximally compressed distance), the `stretchability` (a weight of how much this
distacne
is ready to stretch) and a padding (no matter the calculated distance, put at
least this much
space between the printed ink).
The defaults for Lyrics context are
#'((basic-distance . 0)
(minimum-distance . 2.8)
(padding . 0.2)
(stretchability . 0))
So Lyrics are placed fixed 2.8 staff spaces apart, but making sure there is at
least 0.2 staff
spaces between printed ink. This space is not stretched. So the only thing that
would result
in uneven spacing would be padding.
So
%%%
<<
\new Staff { c d e }
\new Lyrics \lyricmode { M c c }
\new Lyrics \lyricmode { M g g }
\new Lyrics \lyricmode { M f f }
>>
%%%
should produce even spacing, but reducing the distance we’d get uneven spacing:
%%%
<<
\new Staff { c d e }
\new Lyrics \with {
\override VerticalAxisGroup.nonstaff-nonstaff-spacing.minimum-distance = #1
} \lyricmode { M c c }
\new Lyrics \with {
\override VerticalAxisGroup.nonstaff-nonstaff-spacing.minimum-distance = #1
} \lyricmode { M g g }
\new Lyrics \lyricmode { M f f }
>>
%%%
A padding value of 0 means the context are allowed to touch, but not overlap.
If you want
to allow a certain overlap you can use negative values for padding, of to
`-inf.0` to never
take padding into account at all:
%%%
<<
\new Staff { c d e }
\new Lyrics \with {
\override VerticalAxisGroup.nonstaff-nonstaff-spacing.minimum-distance = #1
\override VerticalAxisGroup.nonstaff-nonstaff-spacing.padding = #-inf.0
} \lyricmode { M c c }
\new Lyrics \with {
\override VerticalAxisGroup.nonstaff-nonstaff-spacing.minimum-distance = #1
\override VerticalAxisGroup.nonstaff-nonstaff-spacing.padding = #-inf.0
} \lyricmode { M g g }
\new Lyrics \lyricmode { M f f }
>>
%%%
If you combine this with setting the distances to 0 you can actually let
Lilypond print
contexts on top of each other:
%%%
<<
\new Staff { c d e }
\new Lyrics \with {
\override VerticalAxisGroup.nonstaff-nonstaff-spacing.minimum-distance = #0
\override VerticalAxisGroup.nonstaff-nonstaff-spacing.padding = #-inf.0
} \lyricmode { M c c }
\new Lyrics \with {
\override VerticalAxisGroup.nonstaff-nonstaff-spacing.minimum-distance = #0
\override VerticalAxisGroup.nonstaff-nonstaff-spacing.padding = #-inf.0
} \lyricmode { M g g }
\new Lyrics \lyricmode { M f f }
>>
%%%
So if you get uneven spacing try setting the patting to `-inf.0` and see if
this causes
collisions in lyrics text. If so then simply your line speacing is too low
(which can happen if
say you increase lyrics font size).
Cheers,
Tina
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