Does anybody know what book this is?

I'm a librarian who recieved a reference question as follows:

Several years ago I listened to a book on tape and I would like
to locate it again but I cannot remember the title or the author.
I remember the story was set in the middle of a war (probably WW
II) and the main and most intriguing part was that spy secrets
were passed along through passages of classical music. Can you
help?

Does anyone in this group have any idea what book this patron might be referring to?

Any assistance is greatly appreciated.

Thanks,

B. Freeman

I can't help with this question, but I am rather intrigued (pun unintended) about the book you were asked about. I take it this is fiction? Or could it be non-fiction as well?

Hello Eldritch00:

The only information that I was provided is described above, but I get the sense that it is fiction.

Thanks for writing,

Beemin

Some more general thoughts from me.

I was a bit of an old film buff when younger - I`m pretty sure there is an English black and white film of the book you mention.

If you have no luck in this group, you might like to try re-posting in the Book Talk group.

Just for general interest, the idea of message passed in a piece of classical music first appeared in the short story The Flitterbat Lancers by Victorian writer Arthur Morrison, a story featuring Morrison`s sleuth Martin Hewitt. Unless of course, anyone knows of an earlier version !

You can also post in the "Name that Book" group for broader exposure.