Final answer:
Harrison demands that the musicians play to their fullest potential in Kurt Vonnegut's short story 'Harrison Bergeron'.
Step-by-step explanation:
The question pertains to the offer/demand made by the character Harrison to the musicians. Without additional context, it's difficult to provide a specific answer, but if this relates to Kurt Vonnegut's short story 'Harrison Bergeron', then Harrison demands that the musicians try harder to play their instruments better. In the story, Harrison breaks into a TV studio, takes control, and issues several demands in an attempt to overthrow the government's oppressive control over individual talents and intelligence. He removes his handicaps that were designed to limit his extraordinary abilities and also those of a ballerina, declaring himself emperor. In doing so, he commands the musicians to play to their fullest potential, promising them the position of his 'royal' musicians if they do so.