This 1956 recording of Puccini’s perennially popular La bohème was Callas’s twelfth complete opera recording with La Scala, Milan, though she never sang it live on stage here or anywhere else.While less demanding than many rôles, Mimì nonetheless allows Callas to showcase some highly refined singing marked by her uniquely sensitive musicianship and admirable rhythmic mastery.The cast also features Anna Moffo’s very pleasing interpretation of Musetta and, in the rôle of Rodolfo, Giuseppe Di Stefano, one of the most beautiful lyric tenor voices of the twentieth century.