Lilypond structure / implicit - explicit / with statement

[Bernard]

I would like to comprehend Lilyponds structure.

I read 
http://lilypond.org/doc/v2.18/Documentation/learning/contexts-explained
and
https://docs.fedoraproject.org/en-US/Fedora/16/html/Musicians_Guide/sect-Musicians_Guide-LilyPond-Syntax-Commands-Contexts.html 


That does seems logical.

So if I comprehend right :

Code implicit :
{c'}

Code explicit :
\score {
  \new Staff {
    \new Voice {c'}
  }
}

Are similar. Not identical but similar.
1) Is that correct?

2) Can from the implicit code the explicit code be generated?
So if I have doubt what the structure is, I can view this.

3) I would like to use and to be able to disable the \with statement. 
But I could not find any documentation about it. Do you have a link for me?

Thanks, I really like the style of help of this newsgroups. This 
stimulate me to continue learning and using Lilypond.

With regards

Bernard