For you PERSONALLY, what is the most IMPORTANT DISCOVERY(-ies?) you've made in CLICAL MUSIC?

i have always played piano, but i have always hated practicing. when i heard genossine on the painted veil, it was so beautiful i taught my self by ear. now i play all the time. i belive the beatuy is in the symplisity.idk if erik satie is really clical enugh for you but i hoped that helped