Matt, i did what you said but at the last step the song changed key...anyway, what i was looking for was in

Opt. > Preferences > Notation > Transpose:Clarinet+2

so that BIAB is a clarinet.

i realize i'm being obtuse, but you must admit the word TRANSPOS[E/ITION] is used in different contexts (and don't get me started on the words NOTE or KEY...etc).

i think a tutorial on this specific topic would be useful.

thanks for your pointer...