1. String Quartet No. 1, Op. 4
2. String Quartet No. 1, Op. 4
3. String Quartet No. 1, Op. 4
4. String Quartet No. 1, Op. 4
5. String Quartet No. 6, Op. 70, Suite In Quarter-Tone System
6. String Quartet No. 6, Op. 70, Suite In Quarter-Tone System
7. String Quartet No. 6, Op. 70, Suite In Quarter-Tone System
8. String Quartet No. 9, Op. 79
9. String Quartet No. 9, Op. 79
10. String Quartet No. 9, Op. 79
11. String Quartet No. 15, Op. 95
12. String Quartet No. 15, Op. 95
13. String Quartet No. 15, Op. 95
14. String Quartet No. 15, Op. 95
15. String Quartet No. 15, Op. 95
16. String Quartet No. 16, Op. 98 In Fifth-Tone System
17. String Quartet No. 16, Op. 98 In Fifth-Tone System
18. String Quartet No. 16, Op. 98 In Fifth-Tone System
19. String Quartet No. 16, Op. 98 In Fifth-Tone System
20. String Quartet No. 16, Op. 98 In Fifth-Tone System
21. String Quartet No. 16, Op. 98 In Fifth-Tone System
22. String Quartet No. 16, Op. 98 In Fifth-Tone System
23. String Quartet No. 16, Op. 98 In Fifth-Tone System
24. Tagebuchnotizen (Diary Entries), Op. 101
25. Tagebuchnotizen (Diary Entries), Op. 101
26. Tagebuchnotizen (Diary Entries), Op. 101
27. Tagebuchnotizen (Diary Entries), Op. 101
28. Tagebuchnotizen (Diary Entries), Op. 101
29. Tagebuchnotizen (Diary Entries), Op. 101
30. Tagebuchnotizen (Diary Entries), Op. 101
31. Tagebuchnotizen (Diary Entries), Op. 101
32. Tagebuchnotizen (Diary Entries), Op. 101