scheme problem in lilypond

[Michael Vanier]

Hi,

I was wondering why this fails in a lilypond file:

(define speed 60)

...

\midi { 
    \tempo 4 = #speed 
}


I get this:

foo.ly:95:0: error: parse error, expecting `DIGIT' or `NUMBER_IDENTIFIER' or 
`UNSIGNED' or `REAL':


I can define and substitute strings with no problem, so why not numbers?
Is there a workaround?

Thanks,

Mike


--------------------------------------------------------------
Mike Vanier     address@hidden
Department of Computation and Neural Systems, Caltech 216-76
GNU/Linux: We can't lose; we're on a mission from God.