I want to include a change of midi tempo at various points in a score, using
something like
\setSpeed #2 #120
where
setSpeed =
#(define-music-function
(parser location scale speed)
(number? number? )
#{
\set Score.tempoHideNote = ##t
\tempo scale = speed
#}
)
I'm still using 2.18 I'm afraid, which still used the parser and location
parameters..
I'm assuming this should be a music function rather than markup, but perhaps my
arguments aren't numbers.
In this case the function is hardly worth it, but I want to base more
complicated routines on it, and have failed at the first hurdle!
Jonathan
