In case anyone cares, I finally was able to determine the reference points for the individual non-staff lines. Here they are:
CONTEXT REFERENCE POINT ----------- --------------- ChordNames baseline NoteNames baseline Lyrics baseline Dynamics vertical center FiguredBass highest point FretBoards guitar nut I'll add this to the doc patch and push it: http://codereview.appspot.com/2642043/ The test file I used follows below; I attached a png too. - Mark * * * * * * * * * * * * * * * \version "2.13.39" #(define zero-line '((padding . -inf.0) (space . 0))) \paper { left-margin = 15\mm line-width = 90\mm ragged-right = ##f score-system-spacing = #'((padding . 0) (space . 10) (stretchability . 0)) } \layout { \context { \ChordNames chordNameLowercaseMinor = ##t \override VerticalAxisGroup #'inter-staff-spacing = #zero-line % only because I put a NoteName line in the way (below) \override VerticalAxisGroup #'inter-loose-line-spacing = #zero-line } \context { \Dynamics \override VerticalAxisGroup #'inter-staff-spacing = #zero-line } \context { \FiguredBass \override VerticalAxisGroup #'inter-staff-spacing = #zero-line } \context { \FretBoards \override VerticalAxisGroup #'staff-affinity = #DOWN \override VerticalAxisGroup #'inter-staff-spacing = #zero-line } \context { \Lyrics \override VerticalAxisGroup #'inter-staff-spacing = #zero-line } \context { \NoteNames \override VerticalAxisGroup #'inter-staff-spacing = #zero-line } \context { \Score \override TextScript #'staff-padding = #2 \override TimeSignature #'stencil = ##f \override BarLine #'stencil = ##f } } %% These contexts have reference points at the baseline: %% ChordNames, NoteNames, and Lyrics << \new ChordNames { \chords { g1:m | } } \new NoteNames { s1 | g1 | } \new RhythmicStaff { \set RhythmicStaff.instrumentName = #"baseline " \textLengthOn s1^\markup { \typewriter ChordNames } | s1^\markup { \typewriter NoteNames } | s1^\markup { \typewriter Lyrics } | } \new Lyrics { \lyrics { \skip 1 | \skip 1 | ghijk1 | } } >> %% The reference point for Dynamics is its vertical center << \new RhythmicStaff { \set RhythmicStaff.instrumentName = #"vertical center " s1^\markup { \typewriter Dynamics } | s1 | s1 | } \new Dynamics { s2\mp s\fp | } >> %% The reference point for FiguredBass is its highest point << \new RhythmicStaff { \set RhythmicStaff.instrumentName = #"highest point " \textLengthOn s1^\markup { \typewriter FiguredBass } | s1 | s1 | } \new FiguredBass { \figuremode { <6 5>1 | } } >> %% The reference point for FretBoards is the guitar nut \include "predefined-guitar-fretboards.ly" << \new FretBoards { \chordmode { e1 | } } \new RhythmicStaff { \set RhythmicStaff.instrumentName = #"guitar nut " \textLengthOn s1^\markup { \typewriter FretBoards } | s1 | s1 | } >>
<<attachment: ref-points.png>>
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