The issue with Lana Del Ray's "Get Free", Radiohead's "Creep", and Hollies "Air That I Breathe" is that we (and/or the courts) don't put the chord progression o

The issue with Lana Del Ray's "Get Free", Radiohead's "Creep", and Hollies "Air That I Breathe" is that we (and/or the courts) don't put the chord progression of "I–III–IV–iv" in the same everybody-and-their-dog-has-been-doing-it bucket as "I-IV-V" or the "I–V–vi–IV"[1] (axis of Awesome parodied in the youtube video[2]). If musicologists for Lana Del Ray can find an out-of-copyright work such as a very old classical piece or folk song that uses that progression, the potential lawsuit would have no merit. Until then, that chord progression's very identifiable "chromatic movement and eerie tension" is easy to notice so it will always attract new lawsuits. [1] https://en.wikipedia.org/wiki/I%E2%80%93V%E2%80%93vi%E2%80%93IV_progression https://en.wikipedia.org/wiki/I%E2%80%93V%E2%80%93vi%E2%80%9... [2] https://www.youtube.com/watch?v=5pidokakU4I https://www.youtube.com/watch?v=5pidokakU4I