\version "2.20.0"

% Contournement d'un vilain bogue.
#(define-markup-command (epsfile layout props axis size filename)
                        (number? number? string?)
   (let* ((stencil (eps-file->stencil axis size filename))
          (X-extent (ly:stencil-extent stencil X))
          (Y-extent (ly:stencil-extent stencil Y))
          (outline (make-filled-box-stencil X-extent Y-extent)))
     (ly:stencil-outline stencil outline)))

%%TITRE-ENTETE=============
\header {
  title = "Accords main droite"
  subtitle = "Accordéon chromatique boutons"
  tagline ="réalisé avec Lilypond"
}

%%les notes/accords, clavier droit================
accords = \relative c' {
  \key c \major
  \time 4/4 
<c e g>1 <c e g a> <c e g bes> <c e g b> %\break
<c e gis> <c ees ges>
}


%--- mes vignettes accords
vignettes = {
\autoBeamOff
%mettre les eps ci-dessous
\textLengthOn
s1^\markup \epsfile #X #8 #"c0.eps"
s1^\markup \epsfile #X #8 #"c0.eps"
s1^\markup \epsfile #X #8 #"c0.eps"
s1^\markup \epsfile #X #8 #"c0.eps"
s1^\markup \epsfile #X #8 #"c0.eps"
s1^\markup \epsfile #X #8 #"c0.eps"
}


%% NE PAS MODIFIER=======================
\score {
\new StaffGroup <<
  \new ChordNames {
     \accords
  }
  \new Staff{
    \override Staff.BarLine #'thick-thickness = #2
    \override Staff.BarLine #'hair-thickness = #0.3
    \clef "G"
    \context Voice = "melodie" {\accords}
   }
   %la tablature main gauche
   \new DrumStaff \with {
     \override StaffSymbol #'line-count = #1
     \remove "Time_signature_engraver"
     \remove "Clef_engraver"
     \override BarLine.bar-extent = #'(0 . 0)
   } \vignettes
>>
\layout{
    indent = #0
  line-width = #150
  ragged-last = ##t
}
\midi{}
}