It’s a joy to listen to Ron Granier’s theme for The Prisoner.  Here is the full version without the ancillary sound effects:

Just the opening:

And the closing:

For kicks, “High Wire” by the Edwin Astley Orchestra, the theme used for the second series of Danger Man, the precursor to The Prisoner:

In America, the second season was retitled Secret Agent, with the theme song performed by Johnny Rivers: