transposition: entering parts in absolute pitch

[Tom Yates]

I apologise if this is a FAQ; I've gone back a few months in the archives 
and can't find anything that seems relevant, and I want to get my head 
straight before I do any more work on my arrangement.

I'm arranging something for brass band, which means dealing with 22 lines 
in a variety of transpositions (C, Bb, Eb).  To prevent my head exploding, 
I'm entering all the notes in C (ie, untransposed); what I want to do is 
print the parts, and perhaps the score, with the relevant transpositions 
in place.  I'm also rendering to midi (as an idiot check) and I want that 
to work, too.

But the documentation about \transposition says "\transposition should 
only be used if the pitches are not being entered in concert pitch" [1], 
and that is the reverse of my problem - I'm entering pitches in concert 
pitch and wish only to print transposed.

Am I going about this the wrong way?  Should I go back and re-enter all my 
parts in printed (ie, transposed) pitch?


--

      Tom Yates  -  http://www.teaparty.net


[1] 
http://lilypond.org/doc/v2.18/Documentation/notation/displaying-pitches#instrument-transpositions