 In a YouTube video named "Ski Beatz - the making of Jay-Z's Dead Presidents" Ski explains how he filtered out the high frequency content of the melody sample (using a lowpass filter) to achieve a more prominent bass line without replaying one in.Ski's "Beats, Rhymes & Samples" mixtape contains the Q-Tip remix in the context of a "Dead Presidents" sample, because the original "The World is Yours" had altered lyrics in connection to the sampled vocals.At the end of the sample from the chorus, you can hear the "Whose" from "Whose world is this?"