Ruby, Are You Mad? by The Osborne Brothers
Like many of my favorite tunes, it goes nowhere harmonically, staying on the same chord all the way. So it’s not the shifting colors of the chord progression that draw you in, it’s the musicianship, the flat out NASCAR speed they perform at, and brother Sonny Osborne’s almost psychedelic filigrees on banjo that carry it home. The song is worthy, if slightly inscrutable — is it a love song or a potential murder ballad?
https://urbanmilwaukee.com/2018/12/28/sieger-on-songs-ruby-are-you-mad-love-song-or/

