Listen to Violin Sonata in A Major, IV. Allegretto poco mosso online. Violin Sonata in A Major, IV. Allegretto poco mosso is an English language song and is sung by Jean-Claude van den Eynden and Silvia Marcovici. Violin Sonata in A Major, IV. Allegretto poco mosso, from the album 50 Essential Violin, was released in the year 2010. The duration of the song is 6:06. Download English songs online from JioSaavn.