On Sun, 16 Jun 2013, Bill Meahan wrote:

> On 6/16/2013 3:46 AM, Pablo Rodríguez wrote:
>> 
>> 
>> I'm afraid that I get widow lines in the lines environment.
>> 
>> Is there no way to avoid orphans and widows in the lines environment?
> It's a bit ugly, but if the poem consists of individual stanzas, you can put 
> each stanza in an non-bordered frame.
>
> e.g.:
> % Set up the lines environment to put the contained lines in a frame so they 
> are kept together
> \setuplines[indenting={yes,small,even},       <--  whatever options you want
>   before={\startframedtext[frame=off]},
>   after=\stopframedtext]
>
> % Then wrap your stanzas in individual line environments
>          \startlines
>            A maiden fair was seated there,
>            Her hair of fine-spun gold.
>            Azure eyes so clear and bright,
>            So wondrous to behold.
>          \stoplines
>
> A frame will never be split across pages.
>
> BTW this "trick"is on the wiki on the "Verse" page.

If the poem consists of stanzas with fixed number of lines, say 4, then 
you could also try:

\setuplines[inbetween={\testpage[4]\blank}]

This will ensure that a stanza does not break across pages.

Aditya