This is a fun tune. I don't have much to say about the trombone solo, unfortunately. Maybe there is some other element to Vin Gordon's playing that I am missing entirely, but this solo does not speak to me.
What I do like about the tune is the harmony and the chord changes. So let this be a mini-lesson in composition. We all know our blues forms, our I-IV-V progressions, and our ii-V-I's. But my favorite progression, at the moment, is a move to the vi chord. In a tune like this, where there is no borrowed harmony (V7 of a different key), the move to the relative minor is as dramatic as you can get.
In the minor, the harmony uses a "borrowed" i-vi progression that creates a dark mood. The contrast occurs as it moves to the major key for an extended ii-V-I progression. The descending move between the Bm and G (iii-I) has the feeling of an arrival, similarly to a cadence. Likewise, the fall back into the minor, I-vi with bassline that walks down the scale, is a common technique to begin the journey away from the tonic center. This tune also uses the broad roadmap of a "minor verse, major chorus" that is found in many pop songs.
I just did a quick search for Vin Gordon videos, and they seem to be disappearing just as quickly. Regardless, I believe that every good horn section needs a set of dance moves. Here's a YouTube video of Gordon performing with the original horn section for The Wailers. It's not a tight routine, but you can probably learn a step, or two, from them. Hell, if I'm not going to write about playing the trombone, why should the video be about playing the trombone?
Recommended Reading: That Is All by John Hodgman. Published by Penguin Group.