The '''chorale prelude''' grew out of a short introduction on the organ leading to the congregation’s singing of the chorale. As has so often happened in music, this grew into a form on its own, exemplified by Buxtehude and Bach, then later continued into the 19th century when Max Reger and [[Brahms]] wrote a number of chorale preludes with no intention at all for any choral music to follow. In England, Ralph Vaughan Williams wrote exactly the same types of pieces based on Welsh hymns, called “hymn-tune preludes” and usually heard as orchestral pieces. | The '''chorale prelude''' grew out of a short introduction on the organ leading to the congregation’s singing of the chorale. As has so often happened in music, this grew into a form on its own, exemplified by Buxtehude and Bach, then later continued into the 19th century when Max Reger and [[Brahms]] wrote a number of chorale preludes with no intention at all for any choral music to follow. In England, Ralph Vaughan Williams wrote exactly the same types of pieces based on Welsh hymns, called “hymn-tune preludes” and usually heard as orchestral pieces. |