I spent the evening tearing upstairs to hear Maria Kallas [sic] in Norma. Casta diva is everything he meant it to be, & so is the finale of the last act; and the two women (Ebe Stignani the Adelgiza) were lovely together, playing like race-horses.  The bald straightforward classicism - peut-etre je l'ai senti, said Pasta; and Bellini felt it, though he made such comic druids & such excruciatingly inept modulations.  Incidentally, the shindy of the chorus in the last scene is louder and more overwhelming than any recondite effects of clamour.  It is just loud & threatening, like a cat-fight.