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(defmethod! expand-t-setclass (pcset &optional (n 12))
Given any member of a t-setclass, lists every member of that t-setclass.
The optional parameter N can be used to set the number of equal steps per
octave to something other than the default of 12.
Will tolerate integers out of the mod-N range in PCSET."
:initvals '((1 3 4) 12)
:indoc '("pcset or list of them"
"modulus of the pc space")
(if (listp (first pcset))
(let ((t-prime (t-primeform pcset n)))
(loop with result = nil
for x-pcset = pcset then (xpose x-pcset 1 n)
unless (member x-pcset result) collect x-pcset into result
finally return result))))
(defmethod! expand-t-setclasses (pcset &optional (n 12))
(loop for item in pcset collect (expand-t-setclass item n)))
I am not too familiar with Lisp in general, and am trying to find the bug that casues this error:
ERROR: Duplicate Binding in LOOP: (result)