Toccata and Fugue in D minor for organ, BWV 565

The Toccata and Fugue in B minor is, perhaps, the most famous piece ever written for the organ. This unique work starts with a free form, devoid of any structure or definite order called toccata. Later, begins the more organized fugue, in which a theme recurs every time in a different voice. But the impressive, roaring opening that became this piece's most prominent feature, also testifies to a kind of search for a direction and improvisation continued until the loud chords.

There are substantial suspicions about the work's being not originally written by Bach. Some note stylistic differences and use of pedal that was not customary for him, and some see differences between some of Bach's other known pieces, found in his own handwriting, and this one. In any case, and even if the work was originally intended for the violin, as one hypothesis says, this is a magnificent work of art, one that Bach would have been proud to find out how loved it is, to this very day.