'''Sonatas and Partitas for solo violin''' (BWV 1001-1006) are a set of six works composed by Johann Sebastian Bach. They are also called the '''Sonatas and Partias for solo violin''', in accordance with Bach's original terms: "Partia" was common in German-speaking regions during Bach's time, whereas the Italian "Partita" was introduced to this set in the 1879 Bach Gesellschaft edition, having become standard by that time.Ledbetter, David. ''Unaccompanied Bach, Performing the Solo Works. ''New Haven and London: Yale University Press, 2009. The set consists of three sonatas da chiesa, in four movements, and three partitas (or partias), in dance-form movements.
The set was completed by 1720, but was only published in 1802 by Nikolaus Simrock in Bonn. Even after publication, it was largely ignored until the celebrated violinist Joseph Joachim started performing these works. Today, Bach's ''Sonatas and Partitas'' are an essential part of the violin repertoire, and they are frequently performed and recorded.
The ''Sei Solo - a violino senza Basso accompagnato'', as Bach titled them, firmly established the technical capability of the violin as a solo instrument. The pieces often served as archetypes for solo violin pieces by later generations of composers, including Eugène Ysaÿe and Béla Bartók.