Changing clef for same part?

[Nick Vincent]

Hi all,

I have recently discovered LilyPond and have been really amazed by how powerful it is.  I am using it to transcribe brass parts for a band I have recently joined, so please excuse the possibly dumb question.

I have a song where I would like the baritone sax and trombone to play the same notes.  I've worked out how to do this without typing all the notes out twice, but can't work out how to output the two scores with different clefs:

barisax = \relative c { c' d e f }

\bookpart {

% Baritone sax: should be in treble clef

\score { \transpose bes c' { \barisax } }

}

\bookpart {

% Trombone: Should be in bass clef

\score { \barisax }

}

Putting \clef inside the score block results in a syntax error.  I'm sure this must be possible, but I have scoured the internet and the answer has eluded me so far.  Is there any other way I can make this happen?

Cheers,

Nick