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

[lilypond]

Status: New
Owner: ----
Labels: Type-Enhancement Patch-new
New issue 2789 by paconet....@gmail.com: Patch: Doc: clarify the use of a  
Scheme engraver.
http://code.google.com/p/lilypond/issues/detail?id=2789

Doc: clarify the use of a Scheme engraver.

http://codereview.appspot.com/6488049