Ça ne change rien, \deadNote se plaçant avant la note :
\version "2.16.2"
cross = #(define-music-function (parser location mus) (ly:music?)
#{
\tag #'Cross {
\revert NoteHead #'transparent
$mus
\override NoteHead #'transparent = ##t
}
\tag #'Portee {
\deadNote { $mus }
}
#})
Melody = \relative c' {
c d e \cross f
g a \cross { b c }
a b \cross b \harmonic c
}
melodyStaff = \with {
\override Fingering #'stencil = #point-stencil
}
tabStaff = \with {
\override StaffSymbol #'line-count = #1
\remove "Time_signature_engraver"
\override Clef #'stencil = ##f
\override KeySignature #'stencil = ##f
\override Stem #'stencil = ##f
\override Accidental #'stencil = ##f
\override NoteHead #'style = #'cross
\override Tie #'stencil = ##f
\override Stem #'stencil = ##f
\override Stem #'Y-extent = ##f
\override Flag #'stencil = ##f
\override Beam #'stencil = ##f
\override Dots #'stencil = ##f
\override TupletBracket #'stencil = ##f
\override TupletNumber #'stencil = ##f
\override BreathingSign #'stencil = ##f
\override KeyChangeEvent #'stencil = ##f
\override StringNumber #'stencil = ##f
\override StrokeFinger #'stencil = ##f
}
<<
\new Staff
\melodyStaff
{
\keepWithTag #'Portee
\Melody
}
\new DrumStaff
\tabStaff
{
\override NoteHead #'transparent = ##t
\keepWithTag #'Cross
\Melody
}
>>
En revanche, si tu me trouves où se cache la fonction '\harmonic' ça pourrait probablement m'aider (je n'ai aucune idée de l'endroit où elle se trouve...)