>> Actually,
>>
>> ```
>> \begin[line-width=394\pt]{lilypond}
>> ```
>>
>> is also correct.
>
> Nope. It is backward compatibility but should not be used anywhere.
>
> git grep '\\begin\['
>
> unfortunately shows that this isn't consistently done yet. The
> problem with the old form is that it is not the optional LaTeX
> option syntax and could not possibly be implemented in a
> LaTeX-internal verbatim-like environment.
OK. David, could you prepare a documentation patch, please?
Werner
