The postlude is orchestral, with the chorus speaking above the music.
A postlude to a wedding-march and a prelude to a funeral ditto.
A postlude to the day's funeral march; a prelude to freedom.
Opening with a musical and lyrical prelude, this symphonic composition was to end with a postlude.
For postlude two measures from the cantabile of Chopin's "Funeral March" are used with droll effect.
That Brahms actually had some such intention in adding the postlude is in the personal knowledge of the present writer.