Issue 2121 in lilypond: Doc: alternativeNumberingStyle (fix issue 2059) should be documented

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Documentation

New issue 2121 by address@hidden: Doc: alternativeNumberingStyle  
(fix issue 2059) should be documented
http://code.google.com/p/lilypond/issues/detail?id=2121

From Xavier:

The use of this

  \set Score.alternativeNumberingStyle = #'number

or

  \set Score.alternativeNumberingStyle = #'numbers-with-letters

(from the fix of issue 2059 "Bar numbering of alternatives"
http://code.google.com/p/lilypond/issues/detail?id=2059
http://codereview.appspot.com/5440049 )

deserves an explanation (as a snippet) in the notation reference,
NR 1.4.1 Long repeats  and maybe a cross-reference in  NR 1.2.5 Bars >
Bar numbers

and this new feature deserves an entry in 'Documentation/changes.tely'
IMHO