String quartet No. 5 in E minor, op. 47 (1938-1939) String quartet No. 6 in G minor, op. 49 (1939-1940) String quartet no. 1 in B minor, op. 50 (1931) String quartet No. 4 in F minor, op. 33, no. 4 (1090-1937) String quartet no. 15 in A minor, op. 132 String quartet no. 2 in A minor, op. 13 String quartet no. 4 in C minor, op. 18 no. 4 String quartet no. 4 in C minor, op. 18/4 String quartet no. 8 in C minor, op. 110 String quartet No. 2 in A minor, op. 13