String quartet no. 10 in E flat, op. 74 "Harp" String quartet no. 12 in E flat, op. 127 String quartet no. 6 in B flat, op. 18 no. 6 String quartets No 12 in E flat, Op. 127 String quartets No 13 in B flat, Op. 130 String quartet no. 10 E-flat major, op. 74 "Harp." String quartet no. 15 in A minor, op. 132 String quartet No. 1 in C major, op. 49 String quartet no. 1 in F major, op. 18/1 String quartet no. 1 in F, op. 18 no. 1