I assume that it has to be a clapton song.

I have 2 in mind "Motherless Child" (not children),,, the accustic song he
opened the Nothing but the Blues Tour with. Or "Tell the Truth", but the single
version that I only have on the double LP The History of Eric Clapton... that
I'm not sure ever made it to a CD version. The single version is different than
the other 2 recorded versions of Tell THe Truth, and it has almost no singing
and is peformed at a lighting fast pace. To me this would be an ideal song to
jump start the program.