\version "2.18.2"

exeSixFourEight = {
  \key ees\major
  \tempo "tempo 648"
  \repeat volta 2 {
    | % mes.1
      s1
    | % mes.2
      s1
  }
  % end.
}

%{
\tocItem \markup "648"
\score {
  \new StaffGroup <<
    \new Staff \exeSixFourEight
    \new TabStaff \exeSixFourEight
  >>
  \layout {
    ragged-right = ##f
    indent = 0
    system-count = 1 % <= specify the number of system (avoid '\break' & '\noBreak' work)
    \context {
      \Score
      \omit BarNumber
    }
    \context {
      \StaffGroup
      \omit SystemStartBracket
    }
    \context {
      \Staff
      \clef "F_8"
      \numericTimeSignature
    }
    \context {
      \TabStaff
      stringTunings = #bass-tuning
      \clef "moderntab"
      \tabFullNotation
      \omit TimeSignature
    }
  }
  \header {
    piece = \markup\sans\bold\fontsize #5 "648"
  }
}
%}