Brian ___ I listened to the 'Santeria, version / I like it. lol / the first thing I notice, is the, 2, 2, 1, 2, 2, 2, 1, or - W. W. h. W. W. W. h., sequence of the Major Mode. There is a 'half - tone' between, E-F and B-C, which means that if you Start on E, to make a 'Whole Tone , you have to make f, an 'F# . It appears to be in the Key of 'A Major... starting on the ( fifth ). My 'Rule' is, "If it sounds good use it / If it doesn't, don't ".