The Woman in Green (1945)

Inspector Gregson: So I put my pride in my pocket and went to see the man that so often helped out Inspector Lastrade and myself in the past, Mr. Sherlock Holmes.

Sherlock Holmes: And now, Professor Moriarity, what can I do for you?
Professor Moriarty: Everything that I have to say to you has already crossed your mind.
Sherlock Holmes: And my answer has no doubt crossed yours.
Professor Moriarty: That's final?
Sherlock Holmes: What do you think?

Lydia Marlowe: I was right, Mr Holmes. You are a difficult subject.
Sherlock Holmes: Thank you.

Question: I am trying to identify the music (string quartet) playing during the hypnosis scene? Thanks.