semi-automatic pagebreaks

[Simon Bailey]

hi all,

ok, this one may be fairly complicated to do, but would be a really cool
feature. if it's impossible, feel free to wallop me with a wet fish of your
choosing... :))

in orchestral or band music (at least almost all the stuff i've seen) which
extends over more than two pages, it is customary to insert page breaks only
where the player has at least one bar rest. if i do this manually in lilypond, i
will often end up with weird results. would there be a way for lilypond to
automagically place pagebreaks at convenient locations if
  a) the score will extend over more than three pages
  b) the part in question has something like \pagebreakAtRestOnly in it
    i) this command should then be ignored if there is more than one staff on 
the  
       page...

the second thing which is sort of related to this: if a score is longer than one
page, but only two or three lines longer, then the second page is more than
half-empty. lastpagefill will stretch the space between the systems, but
produces weird results... would it be possible to apply this stretch
automatically to all systems in the piece, thereby filling both (or more) pages
more or less evenly?

i think/realise this would require two runs of lilypond to create reliable
output; i wouldn't actually consider this an inconvenience -- latex needs more
than that for decent sized docs w/indices and table[s] of 
content/figures/tables...

if these things are feasible, would it be possible to put them on a wishlist? if
not, i can carry on with the manual tweaking. :)

thanks, regards,
simon

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