Fix the example of \improvisationOn so that it actually works!

diff --git a/Documentation/user/advanced-notation.itely b/Documentation/user/advanced-notation.itely
index d8be87f2e44898f41668ef2e49194df1fc3a585d..ea29be155571f6b6f24e7d84411d7a04a963a170 100644 (file)
--- a/Documentation/user/advanced-notation.itely
+++ b/Documentation/user/advanced-notation.itely
@@ -2188,7 +2188,7 @@ music snippets.
 
 Improvisation is sometimes denoted with slashed note heads.  Such note
 heads can be created by adding a @internalsref{Pitch_squash_engraver}
-to the @internalsref{Staff} or @internalsref{Voice} context.  Then, the
+to the @internalsref{Voice} context.  Then, the
 following command
 
 @example
@@ -2204,7 +2204,7 @@ There are shortcuts @code{\improvisationOn} (and an accompanying
 the following example
 
 @lilypond[verbatim,ragged-right,quote]
-\new Staff \with {
+\new Voice \with {
   \consists Pitch_squash_engraver
 } \transpose c c' {
   e8 e g a a16(bes)(a8) g \improvisationOn