Creating custom key signatures
LilyPond supports custom key signatures. In this example, print for D
minor with an extended range of printed flats.
\new Staff \with {
\override StaffSymbol.line-count = #8
\override KeySignature.flat-positions = #'((-7 . 6))
\override KeyCancellation.flat-positions = #'((-7 . 6))
% presumably sharps are also printed in both octaves
\override KeySignature.sharp-positions = #'((-6 . 7))
\override KeyCancellation.sharp-positions = #'((-6 . 7))
\override Clef.stencil = #
(lambda (grob)(grob-interpret-markup grob
#{ \markup\combine
\musicglyph "clefs.C"
\translate #'(-3 . -2)
\musicglyph "clefs.F"
#}))
clefPosition = #3
middleCPosition = #3
middleCClefPosition = #3
}
{
\key d\minor
f bes, f bes,
}