[CM] type double-float

[Bill Schottstaedt]

Is it possible that you forgot to load all.lisp?  In sbcl

(load "all.lisp")
(compile-file "moog.lisp")
(load "moog")
(compile-file "filter-noise.ins")
(load "filter-noise")

then try the example in filter-noise.ins.

This doesn't work in clisp (some loop-finish complaint), but it's
been about 20 years since I last looked at it, and I can't remember
what the clisp problem was.