Compose a music piece with a somber and intense atmosphere, evoking deep emotions of sadness and urgency. Incorporate a slow tempo and use dissonant chords to create a sense of unease and melancholy throughout the composition. Experiment with dynamics to build tension and drama, and consider utilizing minor keys for a darker sound. The aim is to create a haunting and hauntingly beautiful piece that truly captures the essence of low valence and high arousal levels.