This story is also has at least two allegories, which may have served as part of the background and inspiration of the Judas story. Both of these require some background explanation.
In music theory, there is a mathematical constant known as the Comma of Pythagoras. Because the frequency ratio of an octave is 2 to 1, and the frequency ratio of a perfect fifth interval is 3 to 2, the musical scale can never be balanced. Either the octave note will be perfectly tuned with fifth being flat, or the fifth will be perfectly tuned with the octave being sharp. Envision a music wheel (see
http://members.aol.com/johnkeely/geo1.html). If the scale is started with an A note, then the fifths and the octaves will both return to an A note 7 octaves later, which is 12 fifths later, at the beginning point on the wheel. However, at this returning connection point, there will be a discrepancy in their frequency ratios of about 1.0136432648, which is known as the Comma of Pythagoras (though it was apparently discovered long before the time of Pythagoras himself). The decimal part, .0135432648, can be considered as the tiny discrepancy between the ideal and the real (see Robert Temple's book, The Crystal Sun). Thus, the music "wheel" is really a music spiral.
This Comma of Pythagoras also shows up in other branches of mathematics, nuclear, and astro physics as well. Without it, hydrogen could not transform into helium and the other elements would not exist. For the details on this, see my book Behind the Wheel: Geometry, Music, and Astronomy of Ancient Monuments, Myths, and Texts (available at
http://www.davidhudgins.com). This "problem" resulting from the Comma of Pythagoras is what led to the widely used system of equal temperament tuning for musical instruments. In the equal temperament system, the octaves (the leader) are in tune while the fifths are always flat relative to their natural frequencies dictated by physics.
Ernest McClain, in The Myth of Invariance suggests that the twelfth disciple can be compared to the twelfth fifth on the music wheel. This twelfth disciple, Judas, betrays the fundamental note, which is the leader, with a kiss--a near miss of approximately .0136432648. Once this twelfth disciple/musical fifth is expelled from the set (Jedi order), the leader or the fundamental note, is forced to absorb this musical "sin" on Himself. Perhaps this is also why, in the story of the kiss of betrayal, all 3 synoptic gospel accounts emphasize that Judas is "one of the twelve," and why the poll on the official site considers the traitor as one of 12 council members. Further suggestive of this is the idea of its intentional usage in the Christian tradition is that soon after the formation of the church, the Christian church selected 7 deacons (see Acts 6: 2-3), making 12 apostles (fifths) and 7 deacons (octaves).
A second allegory for this may also show up in the Arthurian myth. One of he pioneering giants among scholars, John Michell, has suggested that in the Arthur legend, Arthur can be identified with the star Arcturus, and that the journey of the Great Bear/Ursa Major/Big Dipper constellation around the North Pole star is the original source of the Round Table. Due to the facts of changes in the earth's axial tilt (obliquity) and its processional cycle, this "table" is not exactly round, but follows an elliptical spiral pattern with a parallel to the Comma of Pythagoras.