You have the changes there for the solo, for the main part you may want to program only the D drone; I'm no expert, but I think the ambiguity of the changes is what makes the playing of this in an ensemble so much fun. You have that drone, and then the two voices give you the triad feel, only in the solos you have the pedal point as one guide and whatever the trumpet does then limits what the alto can do and vice-versa. I'd say the big trick is to keep the aural image of the melodic line screaming loud inside your head.
The HR Big Band do a full big band arrangment of this. I'd love to see that score!
The HR Big Band do a full big band arrangment of this. I'd love to see that score!