Complex sentence: The Sonatas and Partitas for solo violin (BWV 1001--1006) form a set of six works composed by Johann Sebastian Bach: three sonatas in four movements and three partitas consisting of dance-based movements.
Split into simpler sentences: The Sonatas and Partitas for solo violin (BWV 1001--1006) is a set of six works composed by Johann Sebastian Bach. It consists of three sonatas in four movements and three partitas composed of dance-based movements.