\version "2.11.34"

\header { 
	title = "TOC problems"
	composer = "Reinhold Kainhofer"
}

\header { instrument = "Flauto" }

% This definition to automatically add piece titles to the TOC does not work:
% \paper {
%   scoreTitleMarkup = \markup { \column {
%     \fill-line {
%       \fontsize #3 \bold \fromproperty #'header:piece
%       \tocItem \markup { \fromproperty #'header:piece }
%       \fromproperty #'header:opus
%     }}} 
% }

IKyrieFl = \relative c' {
  % I don't want to have to add \tocItem manually to all similar definitions...
  % How can I do this?
  \tocItem \markup { "Kyrie" } 
  \repeat unfold 14 { c1\break }
}

IKyrieFlStaff = \context Staff = IKyrieFlSt <<
    \context Voice = IKyrieFlVoice { \IKyrieFl }
    \set Staff.instrumentName = "Flauto"
    \set Staff.shortInstrumentName = "Fl."
>>

IKyrieScoreFl =\score {
  << \IKyrieFlStaff >>
  \header { piece = "Kyrie" }
  
}

IIGloriaFl = \relative c' {
  \tocItem \markup { "Gloria" } 
  \repeat unfold 15 { c1\break }
}

IIGloriaFlStaff = \context Staff = IKyrieFlSt <<
    \context Voice = IIGloriaFlVoice { \IIGloriaFl }
    \set Staff.instrumentName = "Flauto"
    \set Staff.shortInstrumentName = "Fl."
>>

IIGloriaScoreFl =\score {
  << \IIGloriaFlStaff >>
  \header { piece = "Gloria" }
}


\markuplines \table-of-contents
\pageBreak

% This works, but is way too cumbersome for huge pieces:
%   \tocItem \markup { "Kyrie 1" } 
\score{ \IKyrieScoreFl }
%   \tocItem \markup { "Gloria 1" } 
\score{ \IIGloriaScoreFl }