Listen to String Quartet No. 2 in D Major, K. 155: I. Allegro (Pt. 1) online. String Quartet No. 2 in D Major, K. 155: I. Allegro (Pt. 1) is an Unknown language song and is sung by Exam Study Music Collective. String Quartet No. 2 in D Major, K. 155: I. Allegro (Pt. 1), from the album Mozart for Exam Study - Classical Mozart Music for Study, Concentrate, Reading, Focus and Learning, was released in the year 2014. The duration of the song is 3:18. Download Unknown songs online from JioSaavn.