Manual barlines

[Andrew Bernard]

Greetings List,

Recently I asked for help putting barlines immediately after the time 
signature and before any notes. I received some excellent replies. But I 
find if I use the various overrides to place the barlines after a time 
signature I cannot get a barline after a full bar, a time signature, and 
then an immediate barline, It's either one way or the other. Call me 
greedy perhaps, but I want to be able to put barlines when and where I 
want them, without lilypond applying smart heuristics to it all. I am 
setting contemporary scores, and lilypond just does not seem to have the 
complete flexibility they tend to require.

So, is there a way I can place a barline just anywhere I want to, ad 
lib? I suspect the answer may be no. Therefore, I have been 
experimenting using postscript paths in markups. This works ok, but I am 
not advanced enough to understand how I can programatically align the 
barline and set its height to that of the staff group. I am sure this 
can be done in Scheme. Can anybody give any pointers to this sort of code?

Andrew