Note between bars

[ghe]

Hi list,

I looked carefully in the Lilypond manuals, but did not find a way to put 
a note (usually a full or a half note) between two bars, like this : |o|, 
or between two double bars, like this : ||o||.  This notation is for 
example often used in psalmody, to mean that the same note should be used 
for a whole sentence, except its three or four last syllables, which are 
then noted with usual notes.  For instance, the first verse of psalm 1 is 
"Blessed is the one who does not walk in step with the wicked", and such a 
note is put under "Blessed", with three different notes under "with the 
wicked".

Any ideas?

Thanks in advance,

--ghe