The musicians refused to play music when Peter asks because they

Peter, the Capulet servant, enters and asks the musicians to play a happy tune to ease his sorrowful heart. The musicians refuse, arguing that to play such music would be inappropriate. Angered, Peter insults the musicians, who respond in kind. After singing a final insult at the musicians, Peter leaves. The musicians decide to wait for the mourners to return so that they might get to eat the lunch that will be served.