Breitkopf & Haertel again / extra-X-extent

[Matthias Kilian]

Hi,

still working on that Bach/Busoni piece, I again tried to get the b&h
style collision handling.

The default behaviour of LilyPond can be seen in bh-default.png, generated
from bh-default.ly.

My first solution to get an output closer to the b&h edition was
bh-wide.png, generated from bh-wide.ly. As the name indicates, that
pair of stem-down notes results in a far too wide spacing, so I tried
to narrow it a little bit.

I don't want to tweak on both notes (the g and the bes), so I seeked the
documenatation once again and tried to fiddle with extra-X-extent. The
result is bh-strange.png (bh-strange.ly). Exactly what I want, with two
*big* flaws:

1. I really don't unterstand the semantics of that pair of numbers
   assigned to extra-X-extent. In fact, I found that strange version by
   trial and error.

2. The bes is moved left, but the g's dot also, thus covered by the g's
   head. Well, I tune the extra-X-extent of the NoteHead, so I
   shouldn't complain ;-)

What I need is: "move that g as well as its dot 1.7 staff sizes right,
and reduce the spacing right of it by up to 1.7 staff sizes." (If spacing
is thight, I don't want the g or its dot collide with the bes.

Has anyone an idea how to get it right?

Ciao,
        Kili

bh-default.ly
Description: Text document

bh-default.png
Description: PNG image

bh-wide.ly
Description: Text document

bh-wide.png
Description: PNG image

bh-strange.ly
Description: Text document

bh-strange.png
Description: PNG image