measures per system

[Kieren MacMillan]

Hi all,

One of my favourite snippets (thanks David!) is
<http://lsr.dsi.unimi.it/LSR/Item?u=1&id=838>

Is there a way that this can be coded "arbitrarily", e.g.

1. The first 19 measures broken as '(4 5 4 6).
2. The next 200 measures broken automagically by Lilypond.
3. The next 32 measures broken as '(4) [repeated 8 times].
4. The rest of the score (unknown number of measures) broken automagically by 
Lilypond.

??

Thanks,
Kieren.