This guide to organ playing includes essential information about how the organ works, in a reduced and straightforward form, so that even the beginner can almost immediately start to play. It covers the four main areas of concern to organists: REGISTRATION, MUSICAL EXPRESSION, TECHNIQUE, AND THE ART OF PRACTISING. Used with Books Two to Five (Graded Selections of Organ Music), it is intended to be a complete training system for organists of all standards.