TimeSignatures over BarLines

[Alexander Kobel]

Dear all,

I'm trying to move time signatures to print over bar lines for a modern 
piece, to allow for a proportional (or almost proportional) note spacing 
despite several time changes.

The usual approach is to place them over the staff, like here:
  http://lsr.di.unimi.it/LSR/Item?id=272
However, the full piece has a whole bunch of staves, so vertical space 
is at a premium; for each staff, the signatures do not fit, and I feel 
that a single time signature over the score is not enough.
Hence, I decided to break the bar line stencil into two short slices, 
and squeeze the time signature in between.

I'm almost there. The missing piece is automatic adjustment of time 
signatures at the beginning of a system. If realignTimeSignatures in the 
attached example is delayed by one measure, the default placement of the 
first time signature is perfect - as usual. However, I could not find a 
way to do the same for the time signature in the fourth system (other 
than manually reverting the overrides).
I achieve either
1) a nice placement of the in-line signature (with 
\realignTimeSignatures), but have to shift the begin-of-line ones by 
some amount and cannot make enough space for them, xor
2) the default position for the begin-of-line signatures (with 
\realignTimeSignaturesII), but then I cannot position barlines and time 
signatures on top of each other.
Can anyone enlighten me here?

Bonus points for someone who can come up with a proper centered 
alignment of the "4" in the double bar line at the /end/ of the third 
system...


Thanks in advance,
Alexander

timesigs.ly
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timesigs.png
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