String Quartet no. 6 / String Quartet no. 7

String Quartet no. 6 in B-flat major, op. 106: I. Allegro

String Quartet no. 6 in B-flat major, op. 106: II. Intermezzo rusticano

String Quartet no. 6 in B-flat major, op. 106: III. Andante piangevole

String Quartet no. 6 in B-flat major, op. 106: IV. Tema con variazioni (Allegro)