Sir Duke Help.. I dont know if I got this even close but here it is

Sound pretty close, a few bits are wrong, but it still sounds good.

I don't have the sheet music with me and I learned to play it tuned down a half step, but this tab from the net looks correct to me for standard tuning.
http://www.bassmasta.net/w/wonder,_stevie/145801.html

 

Try to avoid as many ghost notes in the verse passages.

 

I can't count the number of people I've heard and seen on youtubes who play the unison interlude wrong (they don't go high enough). That tab looks right.

After listening, it doesn't sound like you're going high enough either. Also, it sounds like the placement of the ghost notes isn't right in the main verse.

 

Órale,
Check out Marlowe DK's version on youtube,.......and while your at it, check the whole lot!
Bobbo 77'

 

I've got a copy of the sheet music if you want to send me an email address.

 

That looks like it. The interlude ends with a D# (20th Fret G-String)