Everytime I Get to Drinkin' - Sunnyland Slim

Sunnyland Slim (real name Albert Luandrew) was born in Mississippi, and took the great migration to Chicago, like many of his fellow bluesmen. He became one of Chicago's greatest blues pianists and cut many tracks with dozens of musicians including Sonny Boy Williamson and Muddy Waters. 

This track is from the 1964 American Folk Blues Festival which was held in various places in Europe (this one specifically from the UK show).

Master bluesmen Willie Dixon and Hubert Sumlin are on the bass and guitar respectively on this low down blues.