Re: sophisticated SystemStartBar callback needed

[Kieren MacMillan]

Hi Phil,

> Why do you need the line at all?  I've never seen a vocal score anything like 
> that, and I have seen quite a few.

With only a very quick scan of my library, I turned up about a dozen that have 
a bar for the vox — they're mostly musical theatre scores (e.g., Les Miz, 
Sweeney Todd, Light In The Piazza, etc.), though some are "traditional" scores.

> Gould says it shouldn't be there.  Soloists = single line on the left.  
> Chorus = bracket.

1. As both conductor and engraver, I find the "loose staves" quite a 
distraction; the barred group is superior to my eye (and, apparently, to the 
engravers of the scores mentioned above).
2. Notation evolves to better service the needs of performers — just because 
Gould says something, doesn't make it so.  ;)

Thanks,
Kieren.