Listen to Violin Concerto No. 5, Op. 37: I. Allegro non troppo online. Violin Concerto No. 5, Op. 37: I. Allegro non troppo is an Instrumental language song and is sung by Leonid Kogan, Kirill Kondrashin, Moscow Philharmonic Symphony Orchestra and Ussr State Symphony Orchestra. Violin Concerto No. 5, Op. 37: I. Allegro non troppo, from the album Leonid Kogan. Collection, was released in the year 2018. The duration of the song is 14:23. Download Instrumental songs online from JioSaavn.