Confused about line breaking

[Andrew Bernard]

While trying to concoct a minimal example for my question about staff-staff spacing, I find I am confused. In the attached example, why are the bass notes spaced apart by the number of spacers in the voice for line breaking? I woild have thought they would be consecutive.

Furthermore, if I put the ‘line-breaking’ voice before the voice for notes, it shows this problem in the treble. Clearly there is something very basic here that I am not understanding.

Andrew

— snip

\version "2.19.36"

\paper {

  #(set-paper-size "a4" 'landscape)

}

treble = {

  \clef treble

  \time 4/4

  <<

    \new Voice

    {

      \repeat unfold 16 { c'' }

      \repeat unfold 16 { c'' }

      \repeat unfold 16 { c'' }

    }

    \new Voice % ‘line-breaking'

    {

      s4 * 16 \break

      s4 * 16 \break

      s4 * 16 \pageBreak

    }

  >>

}

bass = {

  \clef bass

  \time 4/4

  c c c

}

\score {

  \new PianoStaff

  <<

    \new Staff \treble

    \new Staff \bass

  >>

  \layout { }

}

— snip