Here's a neat little blues for you get under your fingers. I've been fiddling around with this kind of thing for a long time now and I figured it was time to pass it on. It sounds easier than it is.
It's in A and for once I'm in standard tuning.
The main riff -- if that's what it's called -- has a little twist in it. The double that opens and recurs throughout it is pure A7 (bar 2, at the 7 second mark). It consists of a 5 and a b7 and it's a pretty familiar sound. The twist is that momentary flat 5 that appears in the second double stop (which consists of a flat 7 and a flat 5). Now I know it only last for a fleeting fraction of a second, but it's an important detail. We know that the 'blues scale' is the pentatonic with a flat 5 thrown in, so here it is in a double stop. Getting your fingers around it in a nice slinky fashion is the tricky bit. You'll see that I switch from index-middle fingers for the first double stop to third-pinkie for the next one, and then I instantly slide down a fret, with the same fingers, into the next one. It's that instantaneous slide down that gives it the flavor we're after. Very bluesy. Then there's that bend-up note that soon follows. It's just a slight bend, not a semitone, probably a quarter tone. The initial note, which is C, is the flat 3 of the A7 chord that is in play, and we're bending up a smidgeon to imply the 3, the major third, but we're not going all the way. Again, very bluesy.
The little pick-up which opens the whole tune and appears between riffs also has that same bend-up, and again, it's from the flat 3 bending up just a tad toward the 3.
The full riff occurs twice, then there are three shortened riffs and another full riff. You'll see and hear that I play them slightly differently each time. Sometimes I add the open A string bass note on each down beat, sometimes I don't. None of it is intentional, it's just way it turned out.
I then move to the V chord, an E7#9 -- the famous Hendrix chord -- for a couple of bars -- and change the feel for that section to a sort of half time triplet feel, then I go to an ending, one of those traditional sounding endings.
All in all, a fun one to work out and a challenging one to play ... with feel. Keeping that all-important flow going is the challenge.
See you soon!