Stops; P (at bottom), pedals; P P (at bottom), pedals; P P (at bottom), pedals; P P (at bottom), pedals; P P (at bottom), pedals; P P (at bottom), pedals; P P (at bottom), pedals; P P (at bottom), pedals; P P (at top), pipes carrying compressed air; M, manuals (4); S S, staffs in each instrument a staff showing.