-\version "2.11.51"
+\version "2.16.0"
\header {
texidoc = "The layout of the major 7 can be tuned with
-@code{majorSevenSymbol}."
+@code{majorSevenSymbol}. It does not break if @code{majorSevenSymbol} is unset.
+One should see: triangle - j7 - triangle - #7."
}
\chords {
c:7+
\set majorSevenSymbol = \markup { "j7" }
c:7+
+ \unset majorSevenSymbol
+ c:7+
+ \unset Score.majorSevenSymbol
+ c:7+
}