Listen to Violin Concerto No. 1 in A Major, Op. 20: I. Allegro moderato e maetoso online. Violin Concerto No. 1 in A Major, Op. 20: I. Allegro moderato e maetoso is an English language song and is sung by Ruggiero Ricci. Violin Concerto No. 1 in A Major, Op. 20: I. Allegro moderato e maetoso, from the album Discover Saint-Saens, was released in the year 2014. The duration of the song is 3:59. Download English songs online from JioSaavn.