Listen to Piano Sonata No. 7 in B-Flat Major, Op. 83: I. Allegro inquieto (Live) online. Piano Sonata No. 7 in B-Flat Major, Op. 83: I. Allegro inquieto (Live) is an English language song and is sung by Daniel Pollack. Piano Sonata No. 7 in B-Flat Major, Op. 83: I. Allegro inquieto (Live), from the album From the History of the Tchaikovsky Competition (Live), was released in the year 2015. The duration of the song is 7:12. Download English songs online from JioSaavn.