Listen to Piano Sonata No. 4 in E-Flat Major, Op. 7: I. Molto allegro online. Piano Sonata No. 4 in E-Flat Major, Op. 7: I. Molto allegro is an English language song and is sung by Llyr Williams. Piano Sonata No. 4 in E-Flat Major, Op. 7: I. Molto allegro, from the album Llŷr Williams: Beethoven Unbound, was released in the year 2018. The duration of the song is 8:31. Download English songs online from JioSaavn.