Re: `@lilycode` for highlighting LilyPond code snippets

[Werner LEMBERG]

>> I suggest to apply `@lilycode` only if highlighting has some useful
>> effects, which means that in most cases it should be rather *not*
>> used because inline code is very short.
> 
> AFAICT, the argument to inline @lilycode will always be a longer
> code sample, which in the current scheme would need to contain @/
> commands, but @lilycode will interpret those literally.  What is the
> plan for this?

Since the whole LilyPond code string is under the control of
`lilypond-book`, I thought of inserting `@/` automatically.  I would
also insert `@tie{}` after `^[^ ] ` and before ` [^ ]$` to avoid a
single character at the beginning or end of a line in the output.

I've also thought of recognizing `@var{...}` to indicate a meta
variable, for example

```
\score = "@var{id}" ...
```

(and the stuff within `@var` would be not interpreted by Pygments).


    Werner