Hello blues lovers

Help me find the name of this haunting blues song I heard while driving like a madman through the back roads of Texas a month ago en route to Denver at midnight. The song had a haunting quality to it not unlike the first time we heard The Royal Scam (Steely Dan) in the seventies.

Starting with a medium tempo...drums only for the intro for the first minute or so...then add a little keyboard...not much...one note or so each measure...to give it some chordal structure...then a few more measures...then one soft haunting note from a harmonica...again not much...maybe one note per measure...and then the vocalist would 'say'..."Didn't want to have to tell ya (or tell ya)"...he'd say it maybe once every four measures...song is six or seven minutes long...little reverb (but not live)...new song...old singer...sort of like Hooker...but more clear (half the time you can't understand Hooker!)...Pulled into a Dalhart truck stop called the dj at some public radio station...she was stoned...immaculate...couldn't remember what she played thirty minutes ago!!!

Anyway its haunted me and no radio station in Denver knows...

Help! Wade in Denver