\version "2.13.41"
% \include "deutsch.ly"
musicI = \relative c' { \clef "treble" c4 dis }
musicII = \relative c { \clef "bass" dis4 es }

\score { <<
  \new Staff \new Voice \musicI
  \new Staff \new Voice \musicI
  \new Staff \new Voice \musicII
  % Any of the following lines causes the very first staff to use a bass 
  % clef instead of a treble clef:
%   \new NoteNames \musicII
%   \new FiguredBass \figuremode { \clef "bass" <3>2 }
%   \new ChordNames \chordmode { \clef "bass" c4 }
%   \new FretBoards \chordmode { \clef "bass" c4 }
  \new Lyrics \lyricmode { \clef "bass" Ich4 bin4 }
>>}