Again: Alignment of bars

[Boris Lau]

Hello everyone,

sorry that I'm bringing up this topic again. As several other people (so 
it seems), I want to typeset some leadsheets (melody + chord symbols) 
for Jazz, Funk and Pop music. So far I am quite happy with Lilypond for 
this purpose, the font is great, and the chord symbols are decent, except:

What I'm really missing is the possibility of having all bars in a line 
having the same width. Combined with the \break command this would be 
sufficient to create a layout where all bar lines are aligned if the 
number of bars in a line is the same.

I've read about the workarounds, like proportional mode, and single line 
staves, but these are not very convenient options. Wouldn't this be a 
nice add-on feature for the next version? I imagine that this would mean 
adding a trivial case to the more complex alignment algorithm for the 
conventional notation.

Best from Germany,
Boris