Listen to Flute Sonata in E-Flat Major, BWV 1031: I. Allegro moderato online. Flute Sonata in E-Flat Major, BWV 1031: I. Allegro moderato is an English language song and is sung by Konzentration Musikexperten. Flute Sonata in E-Flat Major, BWV 1031: I. Allegro moderato, from the album Music for Better Memory – Classical Sounds for Study, Concentration, Brain Power, Easier Work with Mozart, Bach, Beethoven, was released in the year 2017. The duration of the song is 3:16. Download English songs online from JioSaavn.