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where the police state a codeword and the OST agents respond with another codeword.
in its most famous setting, the melody starts like this and that phrase, particularly its first four notes, have been used by composers since the 19th century as a musical codeword for death and fear.
Quite what genius might actually be is left a little vague . It's a codeword for 'brilliant but perhaps too other-worldly ever really to fathom.'