Instituto de Informática  Universidade Federal do Rio Grande do Sul (UFRGS)
            
            
                Caixa Postal 15.064  91.501-970  Porto Alegre  RS  Brazil
            
            
                {wulfhors,lvf,naka,dflores,alvares,rosa}@inf.ufrgs.br
            
            
    
The present work proposes a model for a Multi-Agent System capable to deal with music. We believe that many Computer Music problems could be approached through such a Musical Multi-Agent System. Our proposal is based on a community of agents that interact through musical events (MIDI), simulating the behavior of a musical group. As a case study we have implemented a rhythmic accompaniment system. "Listening" to each other, the agents were able to play their instruments in synchronism.