anchor.diff:     #:all-instruments
      #:playing-nodes
   
  -   #:render
  -
      ;;; conversions.lisp
   
      #:bipolar-unipolar
  
positive.code:   (:export
  
     ;;; utility.lisp
  
     #:*cl-patterns-temporary-directory*
  
     #:*event*
     #:*clock*
  
negative.code:    #:stop-backend
     #:enabled-backends
  
     ;;; render.lisp
  
     #:*cl-patterns-temporary-directory*
     #:render
  
     ;;; clock.lisp
  
     #:task-pattern
  