Spinning Squares Scope:

  This  agent  consists  of  a  window  divided  into  four  squares,  each
  containing  its  own  vector-box.  The  box  will  expand and contract in
  correspondence to the notes being played  in  the  track  it  represents.
  Factors in deciding the changes are volume and pitch.

  Configuration  of  this  agent :

  Rotation : Controls whether the vector-boxes should rotate or not.
  
  Double Height: Doubles the height of the scopes. This is  useful  if  you
  are running APlayer on a 1x1 resolution screen.

  GfxCard Safety :  When  ON,  disables  multitasking  during  the  drawing
  routines  to  avoid  the  flickers  that  may  appear  if you are using a
  Graphics Board that uses the processor in stead of the blitter.