Listen to Sonata in E-Flat Major, Mwv Q15: I. Adagio - Allegro moderato online. Sonata in E-Flat Major, Mwv Q15: I. Adagio - Allegro moderato is an English language song and is sung by Vassily Primakov and Alexey Gorokholinsky. Sonata in E-Flat Major, Mwv Q15: I. Adagio - Allegro moderato, from the album Grand Duo - Weber & Mendelssohn, was released in the year 2015. The duration of the song is 11:39. Download English songs online from JioSaavn.