\version "2.11.61"

\paper {
	#(set-paper-size "a4")
	top-margin = 1.5\cm
	bottom-margin = 1.5\cm
	line-width = 18\cm
}

\header {
	tagline = ##f
}

% Treble voice
#(define RH rightHandFinger)
up = {
	\set fingeringOrientations = #'(down)
	\repeat volta 2 {
		a16\mf  bes'-2 d''-3 g''-4 d' bes' d'' g'' a bes'-2 d''-3 f''-1 d' bes' d'' f''|
		a bes'-2 d''-3 e''-0 d' bes' d'' e'' a bes' d'' e'' d' bes' d'' e''
	}
}

% Bass voice
down = {
	\repeat volta 2 {
		a4 d' a d'|
		a d' a d'
	}
}

thescore = \score {
	<<
		\context Staff = guitar {
			\clef treble
			\key c \major
			\time 4/4
			\tempo "Moderato"
			\override Staff.NoteCollision #'merge-differently-headed = ##t
			<<
				\context Voice = "1" { \voiceOne \up }
				\context Voice = "2" { \voiceTwo \down }
			>>
		}
	>>
	\layout { }
}

\score {
	\thescore
}