On Tue 21 Jun 2016 at 14:53:08 (+0200), Jonathan Scholbach wrote:
At your other point: Well, I agree that the usage of the desired
\accidentalStyle can be a matter of discussion. But it is a very common
practice. And there are good arguments for using it (choirsingers often
orientate - consciously or unconsciously - on the harmonies they are
hearing in the other voices.). Anyway, my question was not about best
practice of typesetting but about the realisation of a certain feature
in LilyPond. I would be grateful, if we stuck to this original question.
Sure, I understand (y)our problem; I call it "selling a dummy" (as in
rugger).
Phil Holmes wrote:
What you're asking for is not adding a natural when there's a previous
sharp in a different /voice/, but in a different /staff/. As a
long-time singer myself, I'd find that terribly confusing. If the 2
voices are on the same staff, I could understand it.
It seems odd that this should confuse people because it's standard
fare in LP's piano music, under "Automatic accidentals" in the
Notation Manual. As the effect is acoustic, the staff is immaterial;
you might be singing from your own staff or even your own partbook.