A classic riff to play
To think, many finger-pickers live their day, not realizing others share their origins of starting off with Mississippi John Hurt's, Spike Driver Blues :)
What Hurt plays on the recording
The tuning of the song is in standard tuning, EADGBE.
And now, onto those notes...
the Starting G chord
The song starts with the I/root chord -- the G-chord.
It's played with an alternating bassline & pentatonic notes on the treble-side.
Getting into the IV chord
The song continues into the IV/C chord. It's played as a C-chord, with a G-note (3rd fret of the 6th string) in the bass. A C 'over' G, C/G-chord
Bit #1: into the G7
Finally, to complete the chorus of Spike Driver Blues, Hurt plays 3 cycles of these endings,
- First time: Section B - Part 1
- Second time: Section B - Part 2
- Third time: Section B - Part 2 (repeated)
This first ending/bit rests on the G7 chord at the end.
Bit #2: back into the Gmaj
To finish the chorus, Hurt then plays this 2nd ending/bit twice.
The slight difference from the 1st ending is that he lands on the Gmaj instead of the G7.
And that is it -- there are no more new parts to the song!