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Derek Trucks Band "All I Do"

Don't know the tune but I would say there is a pretty good chance that alot if it is based in the pentatonic. I've listend to DTB before and do realize that he sometimes uses more exotic sounding scales & modes but alot of their music is pent. based.
Work it out measure by measure. Try to pick up the first few notes, get them in your head and under your fingers then try to get the next few notes etc.
Even if you don't get it exactly right the first time you will have at least started some good "ear training".
Tabs are just a shortcut and may have there place in the world but there is no substitute for training your ear. A good ear is priceless!!
 
Anyone have tabs for this? I've figured out the basic structure with root notes but I can get no further. I've scoured the internet and can't find anything.

Sorry, don't have the tab.
But if you have the chords down, there's really not much more to it. I hear mostly root/fifth/ghost notes along with some chromatics thrown in - typical blues/soul stuff.

But knowing the name of the scale isn't going to help you play this way. The bassist isn't really playing "scales" per say more than he's playing a feel. There are certain things that work in a tune like this that come from the blues vocabulary. You can approximate it by using bits of the blues scale (from root and 6th of the chord), the mixolydian scale as well as major and minor pentatonics. But it's how you apply the notes in context that will determine if you're succeeding in making music.

Start off with roots and fifths and listen closely to what he's doing on the recording. Listen to tons of old Motown, Chess and Atlantic blues and soul. Consider where you can leave a space instead of playing a note. Where can you place a ghost note and get away with it?

I suggest you study and practise the scales but "keep them out of the music", meaning: avoid simply playing them up and down for no musical reason. There's a common misconception that the blues comes from the blues scale. Of course, this must be stopped.
 
You can approximate it by using bits of the blues scale (from root and 6th of the chord), the mixolydian scale as well as major and minor pentatonics. But it's how you apply the notes in context that will determine if you're succeeding in making music.

This is probably a typo on your part. I can't resist pointing out that the blues scale does not include the 6th. It is R-b3-4-b-5-b7. It is also not part of the minor pentatonic (R-b3-4-5-b7) The 6th is part of the mixolydian (R-2-3-4-5-6-b7) and major pentatonic (r-2-3-5-6) scales.
 
This is probably a typo on your part. I can't resist pointing out that the blues scale does not include the 6th. It is R-b3-4-b-5-b7. It is also not part of the minor pentatonic (R-b3-4-5-b7) The 6th is part of the mixolydian (R-2-3-4-5-6-b7) and major pentatonic (r-2-3-5-6) scales.

Sorry if you misunderstood. I never said the blues scale or the minor pentatonic included a 6th - I indicated you can use the blues scale from the root of the given chord (in a typical blues context, a dominant 7 chord) as well as from the 6th of that chord (and minor 3rd and flat 5th, though you have to be more careful how you resolve your lines - that's another story). If you look at where the commas and brackets are placed, this should be clear.