Breton bagpipe notation

[guoguocuozuoduo]

Hi all,
 
Is it possible to setup the basic template for Breton bagpipe notation? (as opposed to Scottish notation, Breton notation has all melody notes stem-up and all grace notes/embellishments stem-down.)
 
Here is the code for Scottish notation:
 
\version "2.19.2"
\layout {

\context {

\Voice

% All stems go down.

\override Stem.direction = #DOWN

% All slurs and ties are on top.

\override Slur.direction = #UP

\override Tie.direction = #UP

}

}

 

This code makes all melody notes stem-down and all embellishments/grace notes stem-up. Is there a way to do the reverse, without having to do

 

\stemDown \taor

\stemUp a

\StemDown \dblb

\stemUp b

...

 

every time?

(\taor and \dblb are defined variables in bagpipe.ly)

 

A reply would be much appreciated.