Hi Alberto,
here's what I would start with:
% ---------------------------------------------------------------------
\version "2.19.25"
\defineBarLine "|-norepeat" #'("|" "" "|") % End / Start / Middle of line
\relative c'{
\override Score.TimeSignature.break-visibility = #'#(#f #t #t) % End /
Middle / Start of line
\time 3/4
c8 d e f e d
c8 d e f e d \break
\repeat volta 2 {
\time 6/8
\bar "|-norepeat"
c8 d e f e d
c8 d e f e d \break
}
}
% ---------------------------------------------------------------------
Unfortunately, the two lists use different orders of elements resp. their
meanings...