Quattro Preceder is a term used to describe a four-part musical form. It is composed of four sections, each of which is preceded by a short introduction. The first section is usually the main theme, followed by a contrasting second section, then a third section that is a variation of the first, and finally a fourth section that is a variation of the second. The term 'quattro preceder' comes from the Italian word for 'four, ' quattro.