Creates a new variable binding for each var. Use inside loop to allow algorithms to reference unique values of the same loop variable.

Example:

? (merge foo ()
    (loop for i in '(30 40 50)
          do
      (with-vars-snapshotted (i)
        (algorithm nil midi-note (length 20 rhythm 1
                                         duration 1 amplitude .1)
          (setf note (+ i (random 7)))))))
#<Algorithm: Foo>

See Also: