content: Callas, in 1957, did not have the big voice to sing Turandot; in 1949, yes; in 1957, no! Schwarzkopf as Liù is unidiomatic. The tenor is inept. Only Serafin's conducting saves this set. Callas is no Turandot on this recording. Just listen to Nilsson, Turner, and Dimitrova. EMI should have gone to Austria to look for Gertrud Grob Prandl, a hochdrammatisch sopran who had the chops to really sing Turandot and who did so frequently in Italy.