Listen to String Quartet No. 6 in B-Flat Major, Op. 18 No. 6: II. Adagio ma non troppo online. String Quartet No. 6 in B-Flat Major, Op. 18 No. 6: II. Adagio ma non troppo is an Instrumental language song and is sung by Vermeer Quartet. String Quartet No. 6 in B-Flat Major, Op. 18 No. 6: II. Adagio ma non troppo, from the album Beethoven : Early String Quartets Nos 1 - 6, was released in the year 2004. The duration of the song is 6:41. Download Instrumental songs online from JioSaavn.