Comment #1 on issue 2730 by [email protected]: Use @subsubheading @i{ .. } for level 5 headings
http://code.google.com/p/lilypond/issues/detail?id=2730
If the occurence is regularly enough to warrant a CG entry, it warrants inventing a suitable macro name, defining it in Documentation/common-macros.itexi, and documenting that name in the CG instead of its underlying definition. I don't think we should start recommending visual markup in the CG.
