Keywords: regret, beautiful, tender, pensive, delicate, floating, nostalgia, thoughtful, minimal, romantic, expressive, tragedy, lonely, serious, peaceful, classical, heartfelt, modern, emotive, poignant, sentimental, gentle, contemplative, contemporary, inspiring, film, soft, introspective, bittersweet, reflective, hopeful, drama, emotional, sad, piano, solo piano, medium tempo