String Quartets Op. 12, 13 String quartets opp. 12 & 13 String quartet op. 6, 1 string quartets opp.51 & 105 String quartet op. 6, 2 string quartets opp.34 & 96 String quartets nos. 1 & 2 String quartet op. 3 String quartets Nos. 1 & 2 String quartets nos. 1-3