Listen to String Trio in E-Flat Major, Op. 3: IV. Adagio online. String Trio in E-Flat Major, Op. 3: IV. Adagio is an Instrumental language song and is sung by Mstislav Rostropovich, Leonid Kogan and Rudolf Barshai. String Trio in E-Flat Major, Op. 3: IV. Adagio, from the album Beethoven, Bach, Handel, Schubert, Chopin: Chamber Music, was released in the year 1992. The duration of the song is 8:20. Download Instrumental songs online from JioSaavn.