I don't understand what "A.C" means and looking online didn't provide a satisfying answer except that it might mean "generic shitty" pop.

Same goes 4 "urban contemporary", except that it seems 2 b a polite way of sayin "afro-american music".

U guys gotta understand that we don't have these problems in Europe, with european radios playing either "Maistream Crap" or "Underground Crap", but always playing crap and avoiding decent music as if it was cursed anyway

So can any1 provide an xplanation?

A.C. and Urban Contemporary is music targeted towards the middle-aged crowd who aren't into the music younger people listen to. Like Anita Baker would be considered Urban Adult Contemporary and Celine Dion is A.C.(Adult Contemporary) Versus the Beyonces, Rhiannas and Lady Ga Ga's of the world.

[Edited 9/9/11 12:11pm]

Adult Contemporary used to be called Easy Listening before the 1980's. But Easy Listening was a bit softer than the later Adult Contemporary. Easy Listening radio would play stuff like Richard Clayderman and Lawrence Welk, plus Muzak instrumentals, some 1930's style big band jazz, and some light pop like Barbra Striesand, Sammy Davis Jr, Frank Sinatra, Bing Crosby, & Johnny Mathis. They would also play songs like You Are The Sunshine Of My Life & A Place In The Sun by Stevie Wonder and other newer acts of the time.