a padded carrying case having an inclined plane structure therein . the case is made of a resilient material and when placed on a standard folding chair results in a forward - sloping seating surface . the amount of sloping or pitch can be varied by use of a supplemental shim detachably mounted within the carrying case . the inclined plane member and supplemental shim can be removed from the case and assembled to form a reading stand for musical scores and the like .