Re: what is the object associated with extraNatural ?

[Noeck]

Hi,

I am not sure whether you talk about key signatures or accidentals. In
case of key signatures it is KeyCancellation (as Kieren said), in case
of accidentals (which seems more likely as you refer to extraNatural),
it is Accidental.

For this graphical object, there is no differentiation between sharps,
flats naturals and extra naturals. To my knowledge you can only color
all accidentals of a note at once. This shows all three objects in
different colors:

{
  \override Staff.Accidental.color = #blue
  \override Staff.KeySignature.color = #green
  \override Staff.KeyCancellation.color = #red
  \set Staff.extraNatural = ##t
  \key fis \major
  aeses4 as ais
  \key a \major
  a
}

Cheers,
Joram