Re: [Lilypond-auto] Issue 2789 in lilypond: Patch: Doc: clarify the use of a Scheme engraver.

[lilypond]

Updates:
        Labels: -Patch-countdown Patch-push

Comment #4 on issue 2789 by colinpkc...@gmail.com: Patch: Doc: clarify the  
use of a Scheme engraver.
http://code.google.com/p/lilypond/issues/detail?id=2789
Counted down to 20120902, please push.