At 15:32 on the YouTube video - This stunning piece of composition is laid out in two movements; Prelude & Fugue, as Brahms also set this chorale prelude. The gentle prelude is beautifully written and the fugue contains a range of counterpoint techniques with references to the chorale freely used. Chromaticism and artful melodies produce a structured and exciting arch form which the powerful Blackburn organ relishes along with the more delicate colours.