This day in music history.

June 20, 1937, At the age of 26 Robert Johnson goes into a recording studio in Texas and records - "Hellhound On My Trail", "Little Queen Of Spades", "Malted Milk", "Drunken Hearted Man", "Me And The Devil Blues", "Travelling Riverside Blues", "Honeymoon Blues", "Milkcow's Calf Blues", and "Love In Vain". This would be Johnsons last time in a recording studio, he died in 1938.
From Hellhound On My Trail...
I got to keep moving, I got to keep moving
Blues falling down like hail, blues falling down like hail
And the day keeps on remindin' me, there's a hellhound on my trail