Sometimes the best CDs require repeated listenings before their virtues become apparent. Such is the case with Steely Dan's "Two Against Nature." My initial reaction was disappointment-I did not immediately hear  accessible and catchy songs here a la The Dan's 1970s albums. But the devil  is in the details-the counterpoint piano of "What a Shame About Me," the  jazzy/Third World funkiness of the title track, or the sunny cynicism of  "Janie Runaway." This CD emphasizes rhythm and jazz chops over a  traditional verse-chorus-verse song structure or melody. This CD is like  the jazz influences from which it is drawn-repeated listenings reveal a  dense and sophisticated musicianship.  I have listened to this CD daily  since its release and I find myself coming back to it again and again.  There is a quietness to Donald Fagen's vocals and a jazz-lite sheen to the  music that is initially deceptive.  The strength of the underlying songs,  musicianship and lyrics will gradually reveal themselves after repeated  listenings.