Re: Issue 1043 in lilypond: Cross-staff beams confuse skyline calculations

[lilypond]

Comment #11 on issue 1043 by address@hidden: Cross-staff beams confuse  
skyline calculations
http://code.google.com/p/lilypond/issues/detail?id=1043

Now I see that placement of outside-staff grobs uses a series of skyline  
calculations. Knowing that, the 'Summary:' makes sense.  Sorry for my  
objection earlier.

I would categorize the behavior:

2) Cross-staff beams do not expand skylines. This makes sense so these  
beams do not push the staves apart, but then these beams can overlap  
outside-staff grobs, notably dynamics.  Same as issue 439, and issue 36;  
see also issue 721.

1) An automatic beam ending just before a staff change fails to expand  
skylines, resulting in similar collisions.  Explicit [ ] beams are a  
workaround.  First described in this issue, comments 2 and following.

The "which staff am I in?" confusion in the first measure above could be  
seen as a resurrection of issue 506. I'll send bugs-lilypond a minimal  
example relative to 506.