
Rev. Davis told Stefan Grossman that the first blues he heard was Delia played by an itinerant guitarist named Porter Irving ca. 1910, which would have put Davis in Greenville, South Carolina, around the time he began playing with Willie Walker. The guitar part of Delia is based on that of Cocaine Blues. It starts out with four bars of Cocaine in C and jumps up to the G form C, 5th fret. After a half bar in C it moves to D form F - easiest to play the C form. It lands back in first position C, half bar to Am half bar. The rest is the Cocaine Blues F and concluding C.