BWV 565 The Toccata and Fugue in D minor is organ music written by Bach that 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. Scholars differ as to when it was composed. It could have been as early as c.1704 when Bach was still in his teens. The first publication of the piece occurred in the 19th Century, Bach Revival era. The composer Felix Mendelssohn, who also performed the piece in an acclaimed concert in 1840, was largely credited with reviving interest in Bach’s work. In the 20th Century its popularity rose above that of other organ compositions, largely due to its inclusion in Walt Disney's Fantasia as Stokowski's orchestral transcription.