multiple tempi

[mu303jb]

hello list.

I am new to lilypond, and cant really use it well yet.  I have used other 
software in the past, but recently I have not found them to be flexible 
enough for what I wish to create.  I am composing music with multiple 
simultaneous tempi, which is to be played by musicians with a click track. 
I would like to produce scores using musical notation software, but have 
not yet found one which makes this possible.  before I get into learning 
lilypond, I would like to inquire as to whether it would be possible to 
create scores using it which have multiple simultaneous tempi.

thanks for your help

James