Dub-Dub, this is your expertise. But:

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Don't a fair number of pop songs (particularly songs from the '50's and 60's, such as Teen Angel and Heart and Soul) use solely the sequence
C -- Aminor -- F -- G (or G7)? or more generally, I -- VI-minor -- IV -- V (or V7)?

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Isn't almost all blues music a repeated 12-measure progression:
C -- C -- C -- C / F -- F -- C -- C / G7 -- F -- C -- C,
in whatever key? (some songs use F of the second measure)

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And taking music back a bit farther, am I right in thinking that Pachibel's Canon (one of my personal favs) is an 8-chord progression, repeated and developed?