(Photo: © Vivien Gaumand) Puccini’s “Turandot” was his final and arguably greatest achievement: a work in which the composer who had perfected the sentimental lyricism of “La bohème,” “Tosca” and “Madama Butterfly” looked decisively toward the 20th century. Its harmonic sophistication, orchestral color and atmosphere were unprecedented in his theater, while its stylized orientalism was not merely decorative but fundamental {…}