String Quartets Nos. 1, 8 & 14 String quartets nos. 1 & 2 String quartets Nos. 1 & 2 String quartet no. 1, op. 20 String quartets opp. 12 & 13 String quartet No. 1, 1951 String quartets nos. 1-3 string quartets opp.51 & 105 String quartet no. 12 (1950). String quartets op. 54 nos. 1-3