Never base a comparison solely on a chord progression, unless it's EXTREMELY unique, which none of the examples you cited are. Some of them are based on cliches like falling chromatic bass lines, which can be found in any style of music from any era. Most of them don't even sound all that similar. I'd wager that they are (almost) all coincidences.
Last edited by Xenofan 29A; Jan 2, 2013 at 04:26 PM.
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