Re: Creating a comparison of several variants of unmettered chant

[Alexander Kobel]

Jiri Zurek (Prague) wrote:
> In musicological literature, it is common to create comparative systems
> (staffgroups) where each staff holds the reading of one given version of the
> chant. [...]  (Please,
> see the attachment not prepared in lilypond).  
> http://old.nabble.com/file/p27515617/comparison.jpg 

On a completely unrelated note:  What's that thingy next to the very 
last note of this excerpt (the d' on "pro-mlu-VIL")?  Is this just a 
random blast of ink, or some cool typographic detail missed so far?