Parentheses around a ChordName and unending LyricExtenders

[Christopher Johnson]

Salutations, y'all!

I have two questions.

How do I put parentheses around a ChordName grob generated from a  
\new ChordNames {   } staff?  I'm typesetting some of my cousin's  
compositions for her and she insists this is very important.  The  
only thing that I've found that comes close to doing what I want is  
to omit the chords to be parenthesized from the ChordNames context  
and then tack them on as above-staff markups in the appropriate places 
—which looks bad because the parenthesized chord markup grobs are not  
properly aligned vertically with the ChordName grobs.  Any help here?


Second question.  I have found that when I am typesetting a song with  
multiple verses but a common refrain, that it looks much better not  
to have the refrain lyrics repeated on each verse's Lyrics staff  
above and below each other, but instead to only display the refrain  
once in a single Lyrics staff context.  The trouble with this is that  
I have verses whose final syllables must be followed by lyric  
extenders __

I have found that if I do not put any additional words or syllables  
after a lyric extender (in the same Lyrics staff context) and where  
the music continues onward after the lyric extender should stop, then  
the lyric extender will just go on indefinitely!!  That's definitely  
not what I want.

Any advice on how I can get my verse Lyric staffs to terminate  
gracefully at the start of my chorus/refrain without shooting off  
their closing lyric extenders?

Thanks,

Christopher

P.S. I'm not sure how much or how little of my lilypond source or  
output is necessary or useful for me to send along with my email, and  
what the best way to do that is (i.e. attachments or links or  
whatnot), so just let me know what other materials you need to help  
me crack this problem and I'll send them along as soon as I can.