As stated in https://codereview.appspot.com/
48450044/
I think the Introduction pages should have a title box
giving the user a first idea about the page.
In this case the visitor (currently) would reach the page,
doesn't see a heading and is faced two boxes,
"Concerts" and "Published sheet music" without further introduction.
@node Productions
@unnumberedsec Productions
@node Productions
@unnumberedsec Productions
+@divClass{column-center-top}
+
+@subheading Productions using LilyPond
+
+Here you can read about people who actually use LilyPond
+in their productions, be it for performances of their
+music or as published scores.
+
+@divEnd
+
@divClass{column-left-top}
@subheading Concerts
@divClass{column-left-top}
@subheading Concerts