<P> The Toccata and Fugue in D minor, BWV 565, is a piece of organ music written, according to its oldest extant sources, by Johann Sebastian Bach . The piece opens with a toccata section, followed by a fugue that ends in a coda . It is one of the most famous works in the organ repertoire . </P> <P> Scholars differ as to when it was composed . It could have been as early as c. 1704 (when the presumed composer was still in his teens), which would be one explanation for the unusual features; alternatively a date as late as the 1750s has been suggested (Bach died in 1750). To a large extent the piece conforms to the characteristics deemed typical for the north German organ school of the baroque era with divergent stylistic influences, such as south German characteristics, described in scholarly literature on the piece . </P>

Who wrote bach toccata and fugue in d minor