Jacob Koller's piano medley from "La La Land" is emotionally draining due to its poignant portrayal of unfulfilled dreams and bittersweet love. The delicate melodies evoke a powerful sense of yearning, reminding listeners of the characters' sacrifices and aspirations. Themes like "Mia and Sebastian's Theme" encapsulate the tension between passion and compromise, resonating deeply with anyone who has faced similar struggles. This combination of nostalgia and raw emotion creates a lasting impact, making the experience both beautiful and heart-wrenching.