Listen to Sonata for Flute and Harpsichord in E Major, BWV 1035: IV. Allegro assai online. Sonata for Flute and Harpsichord in E Major, BWV 1035: IV. Allegro assai is an Instrumental language song and is sung by Aleksander Korneyev, Mikhail Muntyan and Alexander Bakhchiev. Sonata for Flute and Harpsichord in E Major, BWV 1035: IV. Allegro assai, from the album Bach: Sonatas for Flute and Harpsichord, was released in the year 2018. The duration of the song is 3:11. Download Instrumental songs online from JioSaavn.