Re: [Lilypond-auto] Issue 2783 in lilypond: wrong placement of timesignature

[lilypond]

Comment #15 on issue 2783 by address@hidden: wrong placement of timesignature
http://code.google.com/p/lilypond/issues/detail?id=2783

In the case without line-positions, centre-of-staff is strictly equivalent  
to position 0, except that it is undefined for line-count=0.  The most  
common use for line-positions will likely be regular positions, but with an  
offset (like the additional staff lines you described).  In that case it  
would seem most sensible to not move the time signature along with the  
staff centre: it seems pointless to use an offset if the time signature  
ignores it.

I have seen no argument regarding use of line-positions that looked  
preferable to using position #0 to me.  The one thing I feel ambiguous  
about is when not having line-positions, and an even value of line-count.   
The "natural" cases, tablature and plainchant, don't call for a meter.   
LilyPond "historically" appears to use an offset of 1 for that case; there  
probably is an intention behind that, and revisiting that intention would  
make sense before trying changes here.

When we are talking about unusual staff arrangements, I don't think it  
unreasonable if the user (or provider of appropriate Staff context  
definitions) will also have to decide about the meter position, and "0" is  
very simple and straightforward as a starting point for that.

Picking something more diverse than that makes sense only in when there are  
well-established typesetting practices that LilyPond can recognize reliably  
from the input.