Listen to Sonata for Flute and Harpsichord in E-Flat Major, BWV 1031: I. Allegro moderato online. Sonata for Flute and Harpsichord in E-Flat Major, BWV 1031: I. Allegro moderato is an Instrumental language song and is sung by Aleksander Korneyev, Mikhail Muntyan and Alexander Bakhchiev. Sonata for Flute and Harpsichord in E-Flat Major, BWV 1031: I. Allegro moderato, from the album Bach: Sonatas for Flute and Harpsichord, was released in the year 2018. The duration of the song is 3:48. Download Instrumental songs online from JioSaavn.