--- /dev/null
+\version "2.16.0"
+\header {
+ texidoc="
+A second score-level header block shall not entirely replace a first header block, but only update changed variables.
+"
+}
+
+\markup \vspace #3
+\markup { \bold Note: expect piece and opus. }
+\markup \vspace #3
+
+\score {
+ \new Staff { c'1 }
+ \header {
+ piece = "Piece correct (set in score)"
+ opus = "Opus incorrect (to be superseded at score level)"
+ }
+ \header {
+ % This should NOT overwrite the piece from above!
+ opus = "Opus correct (superseded at score level)"
+ }
+}