I can't get out of my head a melody I listened to while watching this movie 'Under the Silver Lake'. It's part of the "disturbing piano scene" where the old man brags about having made up so many songs. You can listen to it in this youtube video starting exactly at min. 2:07, right when he says "Your Art, your Writing, your Culture, is the shell of other men's ambitions...".
It sounds extremely familiar to me, but I seem not to be able to recognize the song. Any help would be greatly appreciated!