Listen to Violin Concerto No. 4: IV. Lento online. Violin Concerto No. 4: IV. Lento is an Instrumental language song and is sung by Gidon Kremer, Gennady Rozhdestvensky and Moscow Conservatory Symphony Orchestra. Violin Concerto No. 4: IV. Lento, from the album Alfred Schnittke. Collection, was released in the year 2019. The duration of the song is 9:34. Download Instrumental songs online from JioSaavn.