Chord Progressions are not copyrightable?

I have heard this from many years ago, and recently a friend reminded me of something I knew about when I first read The Platinum Rainbow back in 1984..tell this to Jeff Beck because all the tunes on" Blow to Blow" "There and Back" and "Wired" are just chord progressions.. I bet if Jeff ever caught wind of one of his "chord progressions" proliferating on the airwaves he would take the necessary legal action to make those chord progressions cease and desist.. I will do the same when I hear anything similar to "Coltrane's Dream" on the airwaves and somebody other than jook, ready, and me profiting from it.. just thought i would let the world know now before they get some shady and nefarious ideas about stealing intellectual property.. 
