Apropos of nothing, in Alfred Bester's great SF novel The Demolished Man, a killer made use of such a song -- they call 'em "pepsis" in the book -- to cloak his guilt against the probings of the telepathic detective employed by the police of his society. Once it was spinning in his head, the telepath could read nothing else from him. Think it would work?
Freedom, Wealth, and Peace,
Francis W. Porretto
Visit the Palace Of Reason: http://palaceofreason.com
LOL. When ever I think of that song I think of attorneys.
Regarding your other point; according to recent news stories science will soon be able to develop a brain scan to determine whether or not one is telling the truth; wonder if remembering an old tune will prevent this?