Sonata in A Major for transverse flute and harpsichord (BWV 1032)

J.S. Bach flute sonata in A Major (BWV 1032) for transverse flute and harpsichord most likely was composed during Bach’s Leipzig period: in the late 1720s or 1730s. However, the primary autograph manuscript dates to 1736.
Around that time, after years of lobbying, Bach was finally named "Royal Court Composer" (Hofcomponist) to the Elector of Saxony and King of Poland, Friedrich August II. Bach was the director of the Leipzig Collegium Musicum, a secular ensemble that met at Zimmermann’s Coffee House. This sonata, with its fully written-out ("obbligato") harpsichord part, likely served as a virtuoso vehicle for Bach himself and a talented flutist in these concerts.
The most notable feature of this sonata is its incomplete first movement. Someone, possibly a later owner or a 19th-century librarian, physically cut away sections of the manuscript pages to separate the flute sonata from the harpsichord concerto written on the staves above.
Because only the first 62 bars and the final two bars of the Vivace survived, modern performers must use reconstructions.

Unlike the typical four-movement church sonata, this work follows a three-movement concerto form (Vivace – Largo e dolce – Allegro). It features an "obbligato" harpsichord, meaning the keyboard is a full contrapuntal partner rather than a simple basso continuo accompaniment.
The second movement is uniquely written in the parallel minor (A minor) rather than the more conventional relative minor (F-sharp minor).