Proportional strict notespacing
If strict-note-spacing is set spacing of notes is not influenced
by bars or clefs within a system. Rather, they are placed just before
the note that occurs at the same time. This may cause collisions.
\relative c'' << \override Score.SpacingSpanner.strict-note-spacing = ##t \set Score.proportionalNotationDuration = #1/16 \new Staff { c8[ c \clef alto c c \grace { d16 } c8 c] c4 c2 \grace { c16[ c16] } c2 } \new Staff { c2 \tuplet 3/2 { c8 \clef bass cis,, c } c4 c1 } >>