You could start with this just to sample a little more.
I don't know a lot of purely instrumental blues, but even the recordings with vocals are going to have long instrumental (i.e. guitar) stretches in them. Robert Johnson, Freddie King, Muddy Waters, and B.B. King are all good places to start.
This would be a good starting point.
OK, thanks! I'll check those links out.
Does anyone have suggestions on a) more like that or b) seminal blues albums I should check out, please?
The R.Crumb blues stuff that Tom links is the original, on-78s blues (mostly Delta blues) that is at the core of that music.
But Blues as a genre is very wide and deep. Rhino did a good series of blues compilations tracking regional variations, and development on specific instruments (guitar, harmonica (aka, Blues Harp)), various periods and sub genres.
The Blues tradition in Texas is different from Memphis or the West Coast. Chicago Blues has several variants.
Bessie Smith is practically a genre unto herself but there are a lot of early women's blues from the 20s and 30s that have a distinct, jazzier feel from Delta Blues.
Anyway, Rhino Blues Masters comps:
Mississippi Delta Blues.
Blues Harmonica.
A personal favorite, Jump Blues.
Heavy Metal Tracks the Wealth of Nations
From what I can make out, they guy's statistics seem pretty weak.
Exene has been pretty bonks for a while. A friend of mine did half a tour with her... weren't pretty.
So is she just a bonks gun nut? A bonks teabagger? Or just plain bonks?
Just plain bonks. Erratic and completely unreliable. Nonsensical.