Bach's towering musical achievement was to present in its final shape, the 'fabric of polyhony' (Grove Dictionary). This is no more axiomatic than in his Preludes and Fugues for Organ. Regarded as the world's greatest composer for organ, Bach coupled mastery of the instrument with his genius for composition to produce some of the richest and most beautiful music of all time. This comprehensive volume - reproduced directly from the authoritave Bach-Gesellschaft edition - reprints 25 sets of preludes and fugues, i.e compositions written as fugues. Individual Preludes and Fugues composed over the years are not included.