No. 3 BWV 1016 - I. Adagio

Whose song is No. 3 BWV 1016 - I. Adagio?

Artist Album
Bach
Sonatas for Violin and Harpsichord - Kuijken-Leonhardt - cd1
Sigiswald Kuijken violon & Gustav Leonhardt clavecin
Bach: Sonatas for Violin and Harpsichord (Disc 1)