Re: Repeat volta not at beginning of piece doesn't get initial repeat bar line

[Thomas Morley]

2014-07-14 14:03 GMT+02:00 John McWilliam <address@hidden>:
> Hi,
>         I have followed this discussion with interest having had a similar
> problem myself. Bagpipe music (marches) have a standard format, usually four
> parts and each part is repeated and may have alternative endings. The repeat
> bars are shown at the beginning and end of each part (including the
> beginning)
> and alternative endings may be the same for up to two parts. When this
> involves
> the fourth (last) part the alternative ending is usually closed with \bar
> "|."
>
>         I have had problems following this format in Lilypond.
> - visuallising all repeat bars.
> - combining \repeat volta and \set Score.repeatCommands causes warnings and
>   premature closure of the volta spanner.
> - using \bar "|." in the middle of a piece (This you seem to have solved
>   as far as using \bar "||" is concerned but the solution doen't work for
>   \bar "|."
> I enclose the following snippet to illustrate my problem and hope that
> somebody
> will be able to respond with suggestions.
>
> -----------------------------------------------------------
>
> \version "2.18.0"
>
>
> music = \relative c' {
>         \key c \major \time 4/4
>
> %Part I with two alternative repeat ends
>         \repeat volta 2 {
>         e4. e8 f4. f8 }
>         \alternative { {
>         g4. g8 a4. a8 }
>         {

I'd not mix \repeat volta ... and \alternative ... with manual repeat settings.

> % If the following volta text is introduced the previous repeat bar
> disappears
> % and a warning reports premature closure of the volta spanner. The spanner
> % remains open to the right.
> %       \set Score.repeatCommands = #'((volta "2. --1,2"))
>         b4. b8 c4. c8
> %       \set Score.repeatCommands = #'((volta #f))
>         \bar ".|:-||" \break }
> % The second ending should finish with \bar "|." as this is also the ending
> for
> % the second part and as such the end of the piece. Introducing \bar "|.",
> % however, surpresses the repeat bar at the beginning of the second part. I
> also

\bar ".|:-|." isn't defined!
You can define it yourself, though

> % tried \bar ".|:-|." with a similar result.
>         }
> %Part II with the same repeat end as part I
>         \repeat volta 2 {
>         e4. e8 f4. f8
>         \set Score.repeatCommands = #'((volta "1."))
>         g4. g8 f4.f8
>         \set Score.repeatCommands = #'((volta #f))
>         }
>
> }% end relative
>
> \score  {
>    \new Staff { \music }
> }
> %..................................................


how about:

\version "2.18.0"

\defineBarLine ".|:-|." #'("|." ".|:" "|.")
%% needed to allow the "volta-hook" mid-line:
#(allow-volta-hook ".|:-|.")

music = \relative c' {
        \key c \major
        \time 4/4
        \bar ".|:"
        \set Score.repeatCommands = #'(start-repeat)
        e4. e8 f4. f8
        \set Score.repeatCommands = #'((volta "1."))
        g4. g8 a4. a8
        \set Score.repeatCommands = #'((volta #f) (volta "2. --1,2") end-repeat)
        b4. b8 c4. c8
        \bar ".|:-|."
        \set Score.repeatCommands = #'((volta #f))

        \break

%% not changed:
        \repeat volta 2 {
        e4. e8 f4. f8
        \set Score.repeatCommands = #'((volta "1."))
        g4. g8 f4.f8
        \set Score.repeatCommands = #'((volta #f))
        }

}% end relative

\score  {
   \new Staff { \music }
}

HTH,
  Harm