Listen to Mozart: String Quartet No. 19 in C Major, K. 465: I. Adagio - Allegro (Excerpt) online. Mozart: String Quartet No. 19 in C Major, K. 465: I. Adagio - Allegro (Excerpt) is an Unknown language song and is sung by Emerson String Quartet. Mozart: String Quartet No. 19 in C Major, K. 465: I. Adagio - Allegro (Excerpt), from the album A Very Quick Guide to Mozart Vol. 2, was released in the year 2023. The duration of the song is 1:18. Download Unknown songs online from JioSaavn.