bar numbering

[Hugh Myers]

Clearly this doesn't work:

\version "2.13.7"
upper = {
  b c d
}

lower = {
  < gis, d e, >2.
}

{
  \time 3/4
  <<
  \new Staff \relative c'' {
    <<
      \set Score.barAlways = ##t
      \set Score.defaultBarType = "|"
      \new Voice = "1" { \voiceOne \upper }
      \new Voice = "2" { \voiceTwo \lower }
    >>
  }
  \new TabStaff \relative c' {
    <<
      \new TabVoice = "t1" { \voiceOne \upper }
      \new TabVoice = "t2" { \voiceTwo \lower }
    >>
  }
  >>
}

what does? That is, what numbers each bar, not each not?

--hsm