Re: RFC: new vertical layout engine

[Joe Neeman]

A quick update on the new vertical spacing: the version now in dev/jneeman has most of the features that I had planned (although there are still lots of loose ends to tie up). In particular, you can

- space staves in groups using
\override StaffGroup.StaffGrouper #'after-last-staff-spacing = #'((space . 50) (stretchability . 2))

- change the alignment of lyrics (for example) with
\override Lyrics.VerticalAxisGroup #'staff-affinity = #DOWN

- adjust the position of the top staff using first-system-spacing in the paper block

I haven't yet done Andrew's request to stretch the last page with the same force as the previous page.

Anything I've missed?

Joe