Generate a music composition prompt based on the low valence and low arousal levels indicated by the ABC Notation provided: 

"Compose a piece that conveys a sense of solitude and melancholy, with a solemn and contemplative mood. Use gentle and subdued dynamics to evoke a feeling of introspection and wistfulness. The melody should reflect a subtle sense of longing and vulnerability, creating a somber atmosphere that invites reflection on deeper emotions."