10 quartets
1. String Quartet No.14 in G major, K.387
2. String Quartet No.15 in D minor, K.421/417b
3. String Quartet No.16 in E-flat major, K.428/421b
4. String Quartet No.17 in B-flat major, K.458
5. String Quartet No.18 in A major, K.464
6. String Quartet No.19 in C major, K.465
7. String Quartet No.20 in D major, K.499
8. String Quartet No.21 in D major, K.575
9. String Quartet No.22 in B-flat major, K.589
10. String Quartet No.23 in F major, K...(+)
10 quartets
1. String Quartet No.14 in G major, K.387
2. String Quartet No.15 in D minor, K.421/417b
3. String Quartet No.16 in E-flat major, K.428/421b
4. String Quartet No.17 in B-flat major, K.458
5. String Quartet No.18 in A major, K.464
6. String Quartet No.19 in C major, K.465
7. String Quartet No.20 in D major, K.499
8. String Quartet No.21 in D major, K.575
9. String Quartet No.22 in B-flat major, K.589
10. String Quartet No.23 in F major, K.590