Listen to Serenade for Strings in E-Flat Major, Op. 6: II. Adagio online. Serenade for Strings in E-Flat Major, Op. 6: II. Adagio is an English language song and is sung by Misha Rachlevsky. Serenade for Strings in E-Flat Major, Op. 6: II. Adagio, from the album Romantic Music for Strings, was released in the year 1990. The duration of the song is 10:14. Download English songs online from JioSaavn.