10. The system of claim 8 , wherein the interface enabling the user to modify the data defining the spatial relationship includes a plurality of menus, including a menu for each portion of the display area) wherein each menu lists available tracks for selection for association with the corresponding portion of the display area.
10. The system of claim 8 , wherein the interface enabling the user to modify the data defining the spatial relationship includes a plurality of menus, including a menu for each portion of the display area) wherein each menu lists available tracks for selection for association with the corresponding portion of the display area. 11. The system of claim 10 , wherein the interface further includes a view of the display area indicating a position of each of the portions of the display area.