Partita (also partie, partia, parthia, or parthie[1]) was originally the name for a single-instrumental piece of music (16th and 17th centuries), but Johann Kuhnau (Thomaskantor until 1722), his student Christoph Graupner, and Johann Sebastian Bach used it for collections of musical pieces, as a synonym for suite.
(He titled each of them the German Partia, but they came to be called the Italian partita, which was introduced in the Bach Gesellschaft edition in 1879, being the more common term at the time.
The most prolific composer of partitas for harpsichord was Christoph Graupner, whose works in the form number about 57.
The first set was published in 1718 and dedicated to his patron Ernest Louis, Landgrave of Hesse-Darmstadt.
The longest partita ever written so far is Shoah for Solo Violin and Sacred Temple by Jorge Grundman, which lasts an hour and a half and was finished in 2016.