Generate a music composition prompt according to low valence and low arousal levels based on the provided ABC musical notation:

Compose a slow and mournful piece that conveys a sense of deep sorrow and contemplation. The melody should evoke feelings of sadness and introspection, capturing a somber mood through a gradual progression of melancholic notes and phrases. The composition should reflect a subdued and restrained emotional intensity, allowing for moments of quiet reflection and introspection.