3 texidoc
= "If @code{extraNatural} is set then keys that are not
4 altered farther away (eg from sharp to double sharp) are
5 cancelled. Otherwise only keys that do not occur in the new key
6 signature are cancelled." }
15 \set Staff
.extraNatural
= ##f
17 \key as \major r
1_"No B-natural (#f)"
18 \set Staff
.extraNatural
= ##t
20 \key b \major r
1_"with F-natural (#t)"