Listen to String Quartet in B-flat Major, Op. 130 online. String Quartet in B-flat Major, Op. 130 is an English language song and is sung by Colorado String Quartet. String Quartet in B-flat Major, Op. 130, from the album Beethoven: Complete String Quartets - Colorado Quartet (MC Classical Library), was released in the year 2017. The duration of the song is 6:52. Download English songs online from JioSaavn.