Re: typesetting Christian Wolff Excersize

[Lukas-Fabian Moser]

Hi Valentin,

> Getting the parentheses is quite a simple modification (just use parenthesize-
> stencil on the arrowhead stencil.
You're right. Sorry that I didn't bother to look that up yesterday, 
thanks for stepping in.
>   But I think that using straight arrow lines
> is more readable than the slightly concave arrow head markup.

IIUC, \markup \postscript is a bit of a dangerous horse to put our money 
on, what with the possible move to Cairo as a default backend for 
LilyPond. It might be better to use \path or just - as we are 
constructing a stencil manually anyway and are using only very basic 
shapes - call make-line-stencil manually.

Lukas