[link to original on tumblr]
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Just by listening to "Destination Unknown" (it was a B-side of a single [although the liner notes don't say what the A-side was] and is included as a bonus track on the Balance of Power re-issue), I could tell that - in the verses at least - it's a three-chord song that uses major 6ths. In that regard, it actually resembles 1950s rock and roll. I think a few Buddy Holly and Chuck Berry songs are like that ("Johnny B. Goode" certainly is).
Because it's in C major, the chords are pretty high up the neck, and I'm not that good at playing that sort of major/major 6th thing up there. Even excepting that, it's not the most interesting thing to listen to. It's just the chords for the verses. It's a start though.