Emergent Construction of melodic pitch and hierarchy through agents communicating emotion without melodic intelligence

A multi-agent system is presented which generates melody pitch sequences with a hierarchical structure. The system has no explicit melodic intelligence and generates the pitches as a result of emotional influence and communication between agents, and the hierarchical structure is a result of the emerging agent social structure. Another key element is that the system is not a mapping from multi-agent interaction onto musical features, but actually utilizes music for the agents to communicate emotions. Each agent in the society learns its own growing tune during the interaction process.