Good rocker, Larry...

Only thing that grated on me a little bit was the marimbas... not exactly rock and roll there. A big rollickin' piano part, a bit of Jerry Lee might help it out.

But, just my opinion, no big thing. Song is strong, bridge got Beatles-y again, but is fun...

Nice job!
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An arranger is just a tool. What matters is what you build with it..!