Re: Issue 2093 in lilypond: Doc: alternativeNumberingStyle (fix issue 2059) should be documented

[lilypond]

Comment #3 on issue 2093 by address@hidden: Doc:  
alternativeNumberingStyle (fix issue 2059) should be documented
http://code.google.com/p/lilypond/issues/detail?id=2093

Xavier, see comment #1 above. I cannot see what

\set Score.alternativeNumberingStyle = #'number

does over the default (or is this the default?) as I can see what
\set Score.alternativeNumberingStyle = #'numbers-with-letters does

So I am stuck knowing if I need to add just the #'numbers-with-letters does  
or both and if both what does #'numbers do?