Denis Fodor wrote

>Indeed, I can't think of a musicologist-spy to match the class of Henry
>Pleasants.  Can anyone?

Maybe not quite in the same class, but George Anthiel was co-inventor (With
Hedy Lamarr!  Honest, you could look it up!) of a cryptographic scheme in
1941 designed to foil jamming of torpedo guidance systems.  The idea was
the basis for frequency-hopped spread-spectrum systems which have since
become part of net privacy technology.

-- Art Scott
Livermore, Cal.