\version "2.16.0"

\header {
  filename      =       "chop-op_28_20.ly"
  title         =       \markup \fontsize #1 { "Prélude c-moll" }
  composer      =       \markup \large\caps { "Frédéric Chopin (1810 - 1849)" }
  opus          =       \markup \center-column { \fontsize #-11 " " \normalsize "Opus 28 Nr. 20" }
}

global = {
  \key c \minor
  \time 4/4
  s1*13
  \bar "|."
}

\include "english.ly"

#(set-default-paper-size "a4")          % A4
\paper{                                 % A4
    left-margin = 1.8\cm                  % A4
    line-width = 18.4\cm                % A4
    paper-width = 21\cm                 % A4
    paper-height = 29.7\cm              % A4
    page-count = 1
    system-count = 3
}

violin_I = \relative c''{
  g4 af g8. f16 ef4       % bar  1
  ef f ef8. d16 c4        % bar  2
  d e g8. f16 ef4         % bar  3
  d g b8. a16 g4          % bar  4
}

violin_II = \relative c'{
  <c ef>4 <c ef> <b ef>8. d16 c4  % bar  1
  <af c> <af df> <g c>8. b16 af4  % bar  2
}

viola = \relative c'{
  g af g <ef g>
}

cello = \relative c{
  c4 f, g <g c>
}

bass = \relative c,{
  c4 f, g c
}

\book{
\score{
    \new StaffGroup <<
      \new StaffGroup \with { systemStartDelimiter = #'SystemStartBrace }
      <<
        \new Staff \with { instrumentName = #"1. Violin" shortInstrumentName = #"1. V" }
        << \global \violin_I >>
        \new Staff \with { instrumentName = #"2. Violin" shortInstrumentName = #"2. V" }
        << \global \violin_II >>
      >>
        \new Staff \with { instrumentName = #"Viola" shortInstrumentName = #"Vla" }
        << \global \clef alto \viola >>
        \new Staff \with { instrumentName = #"Cello" shortInstrumentName = #"Cel" }
        << \global \clef bass \cello >>
        \new Staff \with { instrumentName = #"Bass" shortInstrumentName = #"Bs" }
        << \global \clef bass \bass >>
    >>
  \layout{ \context { \Score } }
  \midi { \context { \GrandStaff } }
}
}

\book{
        \new Staff \with { instrumentName = #"1. Violin" shortInstrumentName = #"1. V" }
        << \global \violin_I >>
}

\book{
        \new Staff \with { instrumentName = #"2. Violin" shortInstrumentName = #"2. V" }
        << \global \violin_II >>
}

\book{
        \new Staff \with { instrumentName = #"Viola" shortInstrumentName = #"Vla" }
        << \global \clef alto \viola >>
}

\book{
        \new Staff \with { instrumentName = #"Cello" shortInstrumentName = #"Cel" }
        << \global \clef bass \cello >>
}

\book{
        \new Staff \with { instrumentName = #"Bass" shortInstrumentName = #"Bs" }
        << \global \clef bass \bass >>
}