Music licensors didn't waste any time in characterizing Pandora's acquisition of an FM radio station as an underhanded attempt to cheat performers out of royalties, but the rhetoric has now hit the courtroom, as Broadcast Music Inc. has filed a lawsuit against the streaming service in the New York federal system. Key to the action -- which casts Pandora's move as "an open and brazen effort to artificially drive down its license fees" -- BMI asks for a blanket determination of licensing rates for all music broadcast by