Toccata and Fugue in D minor, BWV.565

The Toccata and Fugue in D minor, BWV 565, is a composition for organ from the Baroque period which was long attributed to Johann Sebastian Bach, but whose authorship has been questioned since 1981. It is one of the most widely recognisable works in the organ repertoire. It was written between 1704 and the 1750s. The piece opens with a toccata section followed by a fugue that ends in a coda, and is typical of the north German organ school of the Baroque era. Little was known about its early existence until the piece was discovered in an undated manuscript produced by Johannes Ringk. It was first published in 1833 during the early Bach Revival period through the efforts of composer Felix Mendelssohn, who also performed the piece in 1840. In the 20th century, its popularity rose above that of other organ compositions by Bach, as exemplified by its inclusion in Walt Disney's 1940 animated film Fantasia using Leopold Stokowski's orchestral transcription from 1927. The piece has been subject to a wide, and often conflicting, variety of analyses. It is often described as a type of program music depicting a storm, while its depiction in Fantasia is suggestive of non-representational or absolute music. The English musicologist Peter Williams questioned its authorship in 1981, and as of 2026, there is no scholarly consensus.