The great thing about the blues is it's improvisational nature; any two (or more) strangers can just sit and play the blues even if they never jammed together before. Just set a 12-bar progression and you're good to go!
Well this is exactly what happened yesterday morning; I had met John recently and we decided to have the morning blues and have a jam. We have never played together before, and we decided to record the first song we played.
Below are the results! (Please excuse the crotch shots).